2024年7月15日发(作者：闽曼冬)
H3C S6850 Series
Data Center Switches
Release Date: Nov, 2022
New H3C Technologies Co., Limited
H3C S6850 Series Data Center Switches
H3C S6850 Series Data Center Switches
Product overview
H3C S6850 high-density intelligent switch series is developed for data centers and cloud
computing networks. It provides powerful hardware forwarding capacity and abundant data
center features. It provides up to 48*25G ports and 8*100G ports. The switch supports modular
power modules and fan trays. By using different fan trays, the switch can provide field-
changeable airflows.
The switch is an ideal product for high-density 25GE switching and aggregation at data centers
and cloud computing networks. It can also operate as a TOR access switch on an overlay or
integrated network.
Product Appearance
The S6850 series come in the following models.
S6850-56HF: The switch provides 48 × 25G SFP28 ports, 8 × 100G QSFP28 ports, and 2 × 1G
SFP ports
S6850-56HF front panel
S6850-56HF rear panel
S6850-2C: The switch provides 2 service slots, 2 × 100G QSFP28 ports
S6850-2C front panel
S6850-2C rear panel
2
H3C S6850 Series Data Center Switches
Features and Benefits
High-Density 25GE Access
The switch offers high-density 100G/40G/25G/10G ports and a wire-speed forwarding capacity as
high as 4 Tbps. With standard 25G ports, it can provide high-density server access in high-end data
centers.
IRF2 (Second Generation Intelligent Resilience Architecture)
Facing the application requirements of the unified switching architecture of the data center, the
series switches support the IRF2 technology, which virtualizes multiple devices into one logical.
The equipment has strong advantages in scalability, reliability, distributed and availability.
IRF2 not only can achieve a long-distance intelligent elastic architecture within a rack, across racks,
and even across regions.
Abundant Data Center Features
The switch supports abundant data center features, including:
H3C S6850 switch series supports VXLAN (Virtual Extensible LAN), which provides two major
benefits, higher scalability of Layer 2 segmentation and better utilization of available network paths.
H3C S6850 switch series supports MP-BGP EVPN (Multiprotocol Border Gateway Protocol Ethernet
Virtual Private Network) which can run as VXLAN control plane to simplify VXLAN configuration,
eliminate traffic flooding and reduce full mesh requirements between VTEPs via the introduction of
BGP RR.
H3C S6850 switch series support Fiber Channel over Ethernet (FCoE), which permits storage, data,
and computing services to be transmitted on one network, reducing the costs of network
construction and maintenance.
H3C S6850 switch series support Priority-based Flow Control (PFC), Enhanced Transmission
Selection (ETS) and Data Center Bridging eXchange (DCBX). These features ensure low latency and
zero packet loss for FC storage, RDMA applications and high-speed computing services.
H3C Distributed Resilient Network Interconnection (DRNI)
H3C S6850 switch series support DRNI(M-LAG), which enables links of multiple switches to
aggregate into one to implement device-level link backup. DRNI is applicable to servers dual-
homed to a pair of access devices for node redundancy.
Streamlined topology: DRNI simplifies the network topology and spanning tree configuration by
virtualizing two physical devices into one logical device.
Independent upgrading: The DR member devices can be upgraded independently one by one to
minimize the impact on traffic forwarding.
High availability: The DR system uses a keepalive link to detect multi-active collision to ensure that
only one member device forwards traffic after a DR system splits.
3
H3C S6850 Series Data Center Switches
Powerful Visibility
With the rapid development of data center, the scale of the data center expands rapidly; reliability, operation
and maintenance become the bottleneck of data center for further expansion. H3C S6850 switch series
conform to the trend of automated data operation and maintenance, and support visualization of data
center.
INT (Inband-Telemetry) is a network monitoring technology used to collect data from the device.
Compared with the traditional network monitoring technology featuring one query, one reporting,
INT requires only one-time configuration for continuous data reporting, thereby reducing the
request processing load of the device. INT can collect timestamp information, device ID, port
information, and buffer information in real time. INT can be implemented in IP, EVPN, and VXLAN
networks.
Provides a variety of traffic monitoring and analytic tools, including sFlow, NetStream,
SPAN/RSPAN/ERSPAN mirroring, and port mirroring to help customers perform precise traffic
analysis and gain visibility into network application traffic. With these tools, customers can collect
network traffic data to evaluate network health status, create traffic analysis reports, perform traffic
engineering, and optimize resource allocation.
Supports realtime monitoring of buffer and port queues, allowing for visible and dynamic network
optimization.
Supports PTP (Precision Time Protocol) to achieve highly precise clock synchronization.
RoCE (RDMA over Converged Ethernet)
Remote Direct Memory Access (RDMA) directly transmits the user application data to the storage
space of the servers, and uses the network to fast transmit the data from the local system to the
storage of the remote system. RDMA eliminates multiple data copying and context switching
operations during the transmission process, and reduces the CPU load.
RoCE supports RDMA on standard Ethernet infrastructures. H3C S6850 switch support RoCE and can
be used to build a lossless Ethernet network to ensure zero packet loss.
RoCE include the following key features，include PFC(Priority based Flow Control), ECN(Explicit
Congestion Notification), DCBX(Data Center Bridging Capability Exchange Protocol), ETS(Enhanced
Transmission Selection).
Flexible programmability
The switch uses industry-leading programmable switching chips that allow users to define the
forwarding logic as needed.
Users can develop new features that meet the evolving trend of their networks through simple
software updates.
Powerful SDN capacity
H3C S6850 switch series adopt the next-generation chip with more flexible Openflow FlowTable,
more resources and accurate ACL matching, which greatly improves the software-defined network
(SDN) capabilities and meet the demand of data center SDN network.
H3C S6850 switch series can interconnect with H3C SeerEngine-DC Controller through standard
protocols such as OVSDB, Netconf and SNMP to implement network automatic deployment and
configuration.
4
H3C S6850 Series Data Center Switches
Comprehensive security control policies
H3C S6850 series switch supports AAA, RADIUS and user account based authentication, IP, MAC,
VLAN, port-based user identification, dynamic and static binding; when working with the H3C iMC
platform, it can conduct real time management, instant diagnosis and crackdown on illicit network
behavior.
H3C S6850 series switch supports enhanced ACL control logic, which enables an enormous amount
of in-port and out-port ACL, and delegate VLAN based ACL. This simplifies user deployment process
and avoids ACL resource wastage. S6850 series switch can also take advantage of Unicast Reverse
Path Forwarding (Unicast RFP). When the device receives a packet, it will perform the reverse check
to verify the source address from which the packets are supposedly originated, and will drop the
packet if such path doesn’t exist. This can effectively prevent the source address spoofing in the
network.
Multiple reliability protection
The S6850 series switch provides multiple reliability protection at both switch and link levels. With
over current, overvoltage, and overheat protection, all models have a redundant pluggable power
module, which enables flexible configuration of AC or DC power modules based on actual needs.
The entire switch supports fault detection and alarm for power supply and fan, allowing fan speed
to change to suit different ambient temperatures.
The switch supports diverse link redundancy technologies such as H3C proprietary RRPP, VRRPE,
and Smart Link. These technologies ensure quick network convergence even when large amount of
traffic of multiple services runs on the network.
Flexible choice of airflow
To cope with data center cooling aisle design, the H3C S6850 series switch comes with flexible
airflow design, which features bi-cooling aisles in the front and back. Users may also choose the
direction of airflow (from front to back or vice versa) by selecting a different fan tray.
Excellent manageability
The switch improves system management through the following ways:
Provides multiple management interfaces, including the serial console port, mini USB console port,
USB port, two out-of-band management ports, and two SFP ports. The SFP ports can be used as in-
band management port through which encapsulated sampling packets are sent to the controller or
other management devices for deep analysis.
Supports multiple access methods, including SNMPv1/v2c/v3, Telnet, SSH 2.0, SSL, and FTP.
Supports standard NETCONF APIs that allow users to configure and manage the switch, enhancing
the compatibility with third-party applications.
5
H3C S6850 Series Data Center Switches
Hardware Specification
Item
Dimensions (H × W × D)
Weight
Serial console port
Out-of-band management port
Mini USB console port
USB port
QSFP28 port
SFP28 port
SFP port
Expansion slot
CPU
Flash/SDRAM
Latency
Switching capacity
Forwarding capacity
Buffer(byte)
AC-input voltage
DC-input voltage
Power module slot
Fan tray slot
Air flow direction
S6850-56HF
43.6 × 440 × 460 mm (1.72 × 17.32 × 18.11 in)
≤ 15 kg (33.07 lb)
1
One GE copper port and one GE fiber port
1
1
8
48
2
-
2.2GHz@4Core
4GB/8GB
<1μs
4 Tbps
2024 Mpps
32M
90v AC to 264v AC
–40v DC to –72v DC
2
S6850-2C
44.2 × 440 × 660 mm (1.74 × 17.32 × 18.11 in)
≤ 16 kg (35.27 lb)
1
One GE copper port and one GE fiber port
1
1
2
-
-
2
2.2GHz@4Core
4GB/8GB
<1μs
3.6Tbps
2024 Mpps
32M
90v AC to 264v AC
–40v DC to –72v DC
2
5 Hot-swappable fan, fan speed adjustable and wind invertible
From front to rear or from rear to front
Single AC: 167 W
From front to rear or from rear to front
Single AC: 136 W
Dual AC: 148 W
Single DC: 132 W
Dual DC: 146 W
Single AC: 273 W ( with LSWM18CQ)
Dual AC: 282 W( with LSWM18CQ)
Single DC: 268 W( with LSWM18CQ)
Dual DC: 275 W( with LSWM18CQ)
Single AC:932 ( with LSWM18CQ)
Dual AC:963( with LSWM18CQ)
Single DC:915( with LSWM18CQ)
Dual DC: 939( with LSWM18CQ)
34
1
Static power consumption
Dual AC: 179 W
Single DC: 154 W
Dual DC: 174 W
Single AC: 201 W
Typical power consumption
Dual AC: 224 W
Single DC: 198 W
Dual DC: 210 W
Single AC: 686
Maximum heat consumption
(BTU/hour)
Dual AC: 765
Single DC: 676
Dual DC: 717
Operating temperature
Operating humidity
0°C to 45°C (32°F to 113°F)
5% to 95%, noncondensing
33.2
1
MTBF(year)
MTTR(hour)
6
H3C S6850 Series Data Center Switches
Software Specification
Item Feature description
IRF2.0
Device Virtualization M-LAG(DRNI)
S-MLAG
BGP-EVPN
Network Virtualization VxLAN
EVPN ES
L2 VxLAN gateway
L3 VxLAN gateway
Distributed VxLAN gateway
Centralized VxLAN gateway
VxLAN EVPN VxLAN
manual configured VxLAN
IPv4 VxLAN tunnel
IPv6 VxLAN tunnel
QinQ VxLAN access
SDN H3C SeerEngine-DC
PFC and ECN
DCBX
Lossless network
RDMA and ROCE
PFC deadlock watchdog
ECN overlay
ROCE stream analysis
Openflow1.3
Programmability
Netconf
Ansible
Python//TCL/Restful API to realize DevOps automated operation and maintenance
Traffic analysis
Sflow
Netstream, only S6850-2C
Port-based VLANs
Mac-based VLAN ,Subnet-based VLAN and Protocol VLAN
VLAN mapping
VLAN QinQ
MVRP(Multiple VLAN Registration Protocol)
Super VLAN
PVLAN
Dynamic learning and aging of mac address entries
MAC address Dynamic,static and blackhole entries
Mac address limiting on ports
RIP(Routing Information Protocol) v1/2
OSPF (Open Shortest Path First) v1/v2
ISIS(Intermediate System to Intermediate system)
IPv4 routing BGP (Border Gateway Protocol)
Routing policy
VRRP
PBR
7
H3C S6850 Series Data Center Switches
Item Specification
RIPng
OSPFv3
IPv6 routing
IPv6 ISIS
BGP4+
Routing policy
VRRP
PBR
Support L3 MPLS VPN
Support L2 VPN: VLL (Martini, Kompella)
Support VPLS, VLL
MPLS/VPLS
Support hierarchical VPLS and QinQ+VPLS access
Support P/PE function
Support LDP protocol
Support MCE
Support MPLS OAM
IGMP snooping
MLD snooping
IPv4 and IPv6 multicast VLAN
Multicast
IPv4 and IPv6 PIM snooping
IGMP and MLD
PIM and IPv6 PIM
MSDP
Multicast VPN
LACP
STP/RSTP/MSTP protocol, PVST compatible
STP Root Guard and BPDU Guard
RRPP and ERPS
Reliability Ethernet OAM
Smartlink
DLDP
BFD for OSPF/OSPFv3, BGP/BGP4, IS-IS/IS-ISv6, PIM/IPM for IPv6 and Static route
VRRP and VRRPE
Weighted Random Early Detection (WRED) and tail drop
Flexible queue scheduling algorithms based on port and queue, including strict priority (SP), Weighted
Deficit Round Robin (WDRR), Weighted Fair Queuing (WFQ), SP + WDRR, and SP + WFQ.
Traffic shaping
QOS
Packet filtering at L2 (Layer 2) through L4 (Layer 4); flow classification based on source MAC address,
destination MAC address, source IP (IPv4/IPv6) address, destination IP (IPv4/IPv6) address, port,
protocol, and VLAN to apply qos policy,including mirroring,redirection,priority remark etc.
Committed access rate (CAR)
Account by packet and byte
COPP
FC/FOCE
FC, FC subcard is supported on S6850-2C
FCOE
gRPC
Telemetry ERSPAN
Mirror on drop
8
H3C S6850 Series Data Center Switches
Item Specification
Telemetry Stream
INT
iNQA
Packet trace, Packet capture
Console telnet and SSH terminals
SNMPv1/v2/v3
ZTP
System log
Telemetry
Configuration and
maintenance
File upload and download via FTP/TFTP, BootRom update and remote update
NQA
ping,tracert
VxLAN ping and VxLAN tracert
NTP
PTP(1588v2)
GIR Graceful Insertion and Removal
Macsec, Macsec subcard is supported on S6850-2C and only 100G macsec subcard can support 256-bit
AES encryption
Micro-Segmentation
Hierarchical management and password protection of users
Authentication methods,including AAA,RADIUS and HWTACACS
Support DDos, ARP attack and ICMP attack function
Security and management
IP-MAC-port binding and IP Source Guard
SSH 2.0
HTTPS
SSL
PKI
Boot ROM access control (password recovery)
RMON
FCC Part 15 Subpart B CLASS A
ICES-003 CLASS A
VCCI CLASS A
CISPR 32 CLASS A
EN 55032 CLASS A
AS/NZS CISPR32 CLASS A
EMC CISPR 24
EN 55024
EN 61000-3-2
EN 61000-3-3
ETSI EN 300 386
GB/T 9254
YD/T 993
802.3x/802.3ad/802.3AH/802.1P/802.1Q/802.1X/802.1D/802.1w/802.1s/802.1AG
802.1x/802.1Qbb/802.1az/802.1Qaz
UL 60950-1
CAN/CSA C22.2 No 60950-1
IEC 60950-1
IEEE Standard
Safety EN 60950-1
AS/NZS 60950-1
FDA 21 CFR Subchapter J
GB 4943.1
9
H3C S6850 Series Data Center Switches
Performance and scalability
Item
Virtualization
Description
IRF2.0 stack
M-LAG device number
ED group
9
2
8
18K/pipe, total 2 pipes
2304/pipe, total 2 pipes
10752/pipe, total 2 pipes
2048
1K
1K
9416
4
1000
256
288K max
272K max
136K max
324K max
162K max
4000
4000
16K
4000
4000
8K
1024
256
max 4K
2-128
4095
1K
2500
2K
16K
16K
2K
8K
2K
2K
4094
ACL
max number of ingress ACLs
max number of ingress Car
max number of ingress Counter
max number of egress ACLs
max number of egress Car
max number of egress Counter
Forwarding table
Jumbo frame length(byte)
Mirroring group
PBR policy
PBR node
max number of MACs per switch
max number of ARP entries IPv4
max ND table size for IPv6
max number of unicast routes IPv4
max number of unicast routes IPv6
IPv4 l2 multicast group
IPv4 l3 multicast group
IPv4 multicast routing
IPv6 l2 multicast group
IPv6 l3 multicast group
IPv6 multicast routing
LAGG group
LAGG member per group
ECMP group
ECMP member per group
VRF
Interface
Loopback interface number
L3 sub interface number
SVI interface number
VxLAN AC number
VxLAN VSI number
VxLAN tunnel number
VSI interface number
IPv4 tunnel number
IPv6 tunnel number
VLAN number
10
H3C S6850 Series Data Center Switches
Performance and scalability
Performance
Description
RIB
MSTP instance
PVST instance
PVST logical port number
VRRP VRID
VRRP group
NQA group
1M
64
510
2000
255
256
32
4000
1K
1K
4K
2K
4000
Static table
static mac-address
static multicast mac-address
static ARP
static ND
static IPv4 routing table
static IPv6 routing table
Data Center Application
The typical data center application is an EVPN-VxLAN design,S12500G-AF or S12500X-AF
switches work as spine or spine/border, S68XX series work as leaf and border or ED. From this
design, the usres can get a non-blocking large L2 system.
11
H3C S6850 Series Data Center Switches
Order information
PID
LS-6850-56HF
LS-6850-2C
Power
LSVM1AC650
LSVM1DC650
Fan
LSWM1FANSAB
LSWM1FANSA
Module
LSWM18QC
LSWM124XG2Q
LSWM124XGT2Q
LSWM124XG2QL
LSWM124XG2QFC
LSWM18CQ
LSWM116Q
LSWM124TG2H
LSWM18CQMSEC
Transceiver
SFP-GE-LH80-SM1550
SFP-FE-LX-SM1310-A
SFP-FE-SX-MM1310-A
SFP-FE-LH40-SM1310
SFP-GE-LX-SM1310-A
SFP-GE-LH40-SM1310
SFP-GE-LH40-SM1550
SFP-GE-SX-MM850-A
SFP-GE-T
QSFP-100G-LR4-
WDM1300
QSFP-100G-LR4L-
WDM1300
QSFP-100G-PSM4-
SM1310
QSFP-100G-SR4-MM850
QSFP-100G-LR4L-
WDM1300
QSFP-100G-LR4-
WDM1300
QSFP-40G-LR4-
WDM1300
QSFP-40G-BIDI-SR-
MM850
QSFP+ 40GBASE Optical Transceiver Module (1310nm,10km,LR4,LC)
QSFP+ 40GBASE BIDI Optical Transceiver Module (850nm,100m,SR)
100G QSFP28 Optical Transceiver Module(1310nm,10km,LR4,WDM,LC)
Description
H3C S6850-56HF L3 Ethernet Switch with 48 SFP28 Ports and 8 QSFP28 Ports
H3C S6850-2C L3 Ethernet Switch with 2*QSFP28 Ports and 2*Interface Module
Slots
650W AC Power Supply Module
650W DC Power Supply Module
Fan Module (SW, 4056, DC, Air Inlets in Panel)
Fan Module (SW, 4056, DC, Air Inlets in Panel)
8-Port QSFP Plus Interface Card
24-Port SFP Plus and 2-Port QSFP Plus Interface Card with MACSec
24-Port 10GBASE-T and 2-Port QSFP Plus Interface Card with MACSec
24-Port SFP Plus and 2-Port QSFP Plus Interface Card
24 Ports SFP Plus and 2 Ports QSFP Plus Interface Card with FC
H3C 8-Port 100G Ethernet Optical Interface Module(QSFP28)
H3C 16-Port 40G Ethernet Optical Interface Module(QSFP Plus)
H3C 24-Port 25G Ethernet Optical Interface (SFP28) and 2-Port 100G Ethernet
Optical Interface (QSFP28) Module
H3C 8-Port 100G MACSEC Ethernet Optical Interface Module(QSFP28)
1000BASE-LH80 SFP Transceiver, Single Mode (1550nm, 80km, LC)
100BASE-LX SFP Transceiver, Single Mode (1310nm, 15km, LC)
100BASE-FX SFP Transceiver, Multi-Mode (1310nm, 2km, LC)
100BASE-LH40 SFP Transceiver, Single Mode (1310nm, 40km, LC)
1000BASE-LX SFP Transceiver, Single Mode (1310nm, 10km, LC)
1000BASE-LH40 SFP Transceiver, Single Mode (1310nm, 40km, LC)
1000BASE-LH40 SFP Transceiver, Single Mode (1550nm, 40km, LC)
1000BASE-SX SFP Transceiver, Multi-Mode (850nm, 550m, LC)
SFP GE Copper Interface Transceiver Module (100m,RJ45)
100G QSFP28 Optical Transceiver Module(1310nm,10km,LR4,WDM,LC)
100G QSFP28 Optical Transceiver Module (1310nm,2km,LR4L,CWDM4,LC)
100G QSFP28 Optical Transceiver Module (1310nm,500m,PSM4,MPO/APC)
100G QSFP28 Optical Transceiver Module (850nm,100m OM4,SR4,MPO)
100G QSFP28 Optical Transceiver Module (1310nm,2km,LR4L,CWDM4,LC)
12
H3C S6850 Series Data Center Switches
PID Description
Transceiver
QSFP-40G-LR4L-
WDM1300
QSFP+ 40GBASE Optical Transceiver Module (1310nm,2km,LR4L,LC)
QSFP-40G-LR4-QSFP+ 40GBASE Optical Transceiver Module (1310nm,10km,MPO/APC,LR4,Parallel
PSM1310 Single Mode)
QSFP+ 40GBASE Optical Transceiver Module (850nm,100m,SR4,Support 40G to
QSFP-40G-SR4-MM850
4*10G)
QSFP-40G-CSR4-QSFP+ 40GBASE Optical Transceiver Module (850nm,300m,CSR4,Support 40G to
MM850 4*10G)
Cable
QSFP-100G-D-AOC-
100G QSFP28 to 100G QSFP28 10m Active Optical Cable
10M
QSFP-100G-D-CAB-1M 100G QSFP28 to 100G QSFP28 1m Passive Cable
QSFP-100G-D-AOC-
100G QSFP28 to 100G QSFP28 20m Active Optical Cable
20M
QSFP-100G-D-CAB-3M 100G QSFP28 to 100G QSFP28 3m Passive Cable
QSFP-100G-D-CAB-5M 100G QSFP28 to 100G QSFP28 5m Passive Cable
QSFP-100G-D-AOC-7M 100G QSFP28 to 100G QSFP28 7m Active Optical Cable
QSFP-100G-4SFP-25G-
100G QSFP28 to 4x25G SFP28 1m Passive Cable
CAB-1M
QSFP-100G-4SFP-25G-
100G QSFP28 to 4x25G SFP28 3m Passive Cable
CAB-3M
QSFP-100G-4SFP-25G-
100G QSFP28 to 4x25G SFP28 5m Passive Cable
CAB-5M
LSWM1QSTK0 40G QSFP+ Cable 1m
LSWM1QSTK1 40G QSFP+ Cable 3m
LSWM1QSTK2 40G QSFP+ Cable 5m
QSFP-40G-D-AOC-10M 40G QSFP+ to 40G QSFP+ 10m Active Optical Cable
QSFP-40G-D-AOC-20M 40G QSFP+ to 40G QSFP+ 20m Active Optical Cable
QSFP-40G-D-AOC-7M 40G QSFP+ to 40G QSFP+ 7m Active Optical Cable
LSWM1QSTK3 40G QSFP+ to 4x10G SFP+ Cable 1m
LSWM1QSTK4 40G QSFP+ to 4x10G SFP+ Cable 3m
LSWM1QSTK5 40G QSFP+ to 4x10G SFP+ Cable 5m
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Copyright ©2022 New H3C Technologies Co., Limited Reserves all rights
Beijing Headquarters
Disclaimer: Though H3C strives to provide accurate information in this document, we cannot guarantee that details do not
Tower 1, LSH Center, 8 Guangshun South Street, Chaoyang
contain any technical error or printing error. Therefore, H3C cannot accept responsibility for any inaccuracy in this document.
District, Beijing, China
H3C reserves the right for the modification of the contents herein without prior notification
Zip: 100102
Hangzhou Headquarters
No.466 Changhe Road, Binjiang District, Hangzhou, Zhejiang,
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Zip: 310052
Tel: +86-571-86760000
PID
13
IRF stack
M-LAG device number
De
2024年7月15日发(作者：闽曼冬)
H3C S6850 Series
Data Center Switches
Release Date: Nov, 2022
New H3C Technologies Co., Limited
H3C S6850 Series Data Center Switches
H3C S6850 Series Data Center Switches
Product overview
H3C S6850 high-density intelligent switch series is developed for data centers and cloud
computing networks. It provides powerful hardware forwarding capacity and abundant data
center features. It provides up to 48*25G ports and 8*100G ports. The switch supports modular
power modules and fan trays. By using different fan trays, the switch can provide field-
changeable airflows.
The switch is an ideal product for high-density 25GE switching and aggregation at data centers
and cloud computing networks. It can also operate as a TOR access switch on an overlay or
integrated network.
Product Appearance
The S6850 series come in the following models.
S6850-56HF: The switch provides 48 × 25G SFP28 ports, 8 × 100G QSFP28 ports, and 2 × 1G
SFP ports
S6850-56HF front panel
S6850-56HF rear panel
S6850-2C: The switch provides 2 service slots, 2 × 100G QSFP28 ports
S6850-2C front panel
S6850-2C rear panel
2
H3C S6850 Series Data Center Switches
Features and Benefits
High-Density 25GE Access
The switch offers high-density 100G/40G/25G/10G ports and a wire-speed forwarding capacity as
high as 4 Tbps. With standard 25G ports, it can provide high-density server access in high-end data
centers.
IRF2 (Second Generation Intelligent Resilience Architecture)
Facing the application requirements of the unified switching architecture of the data center, the
series switches support the IRF2 technology, which virtualizes multiple devices into one logical.
The equipment has strong advantages in scalability, reliability, distributed and availability.
IRF2 not only can achieve a long-distance intelligent elastic architecture within a rack, across racks,
and even across regions.
Abundant Data Center Features
The switch supports abundant data center features, including:
H3C S6850 switch series supports VXLAN (Virtual Extensible LAN), which provides two major
benefits, higher scalability of Layer 2 segmentation and better utilization of available network paths.
H3C S6850 switch series supports MP-BGP EVPN (Multiprotocol Border Gateway Protocol Ethernet
Virtual Private Network) which can run as VXLAN control plane to simplify VXLAN configuration,
eliminate traffic flooding and reduce full mesh requirements between VTEPs via the introduction of
BGP RR.
H3C S6850 switch series support Fiber Channel over Ethernet (FCoE), which permits storage, data,
and computing services to be transmitted on one network, reducing the costs of network
construction and maintenance.
H3C S6850 switch series support Priority-based Flow Control (PFC), Enhanced Transmission
Selection (ETS) and Data Center Bridging eXchange (DCBX). These features ensure low latency and
zero packet loss for FC storage, RDMA applications and high-speed computing services.
H3C Distributed Resilient Network Interconnection (DRNI)
H3C S6850 switch series support DRNI(M-LAG), which enables links of multiple switches to
aggregate into one to implement device-level link backup. DRNI is applicable to servers dual-
homed to a pair of access devices for node redundancy.
Streamlined topology: DRNI simplifies the network topology and spanning tree configuration by
virtualizing two physical devices into one logical device.
Independent upgrading: The DR member devices can be upgraded independently one by one to
minimize the impact on traffic forwarding.
High availability: The DR system uses a keepalive link to detect multi-active collision to ensure that
only one member device forwards traffic after a DR system splits.
3
H3C S6850 Series Data Center Switches
Powerful Visibility
With the rapid development of data center, the scale of the data center expands rapidly; reliability, operation
and maintenance become the bottleneck of data center for further expansion. H3C S6850 switch series
conform to the trend of automated data operation and maintenance, and support visualization of data
center.
INT (Inband-Telemetry) is a network monitoring technology used to collect data from the device.
Compared with the traditional network monitoring technology featuring one query, one reporting,
INT requires only one-time configuration for continuous data reporting, thereby reducing the
request processing load of the device. INT can collect timestamp information, device ID, port
information, and buffer information in real time. INT can be implemented in IP, EVPN, and VXLAN
networks.
Provides a variety of traffic monitoring and analytic tools, including sFlow, NetStream,
SPAN/RSPAN/ERSPAN mirroring, and port mirroring to help customers perform precise traffic
analysis and gain visibility into network application traffic. With these tools, customers can collect
network traffic data to evaluate network health status, create traffic analysis reports, perform traffic
engineering, and optimize resource allocation.
Supports realtime monitoring of buffer and port queues, allowing for visible and dynamic network
optimization.
Supports PTP (Precision Time Protocol) to achieve highly precise clock synchronization.
RoCE (RDMA over Converged Ethernet)
Remote Direct Memory Access (RDMA) directly transmits the user application data to the storage
space of the servers, and uses the network to fast transmit the data from the local system to the
storage of the remote system. RDMA eliminates multiple data copying and context switching
operations during the transmission process, and reduces the CPU load.
RoCE supports RDMA on standard Ethernet infrastructures. H3C S6850 switch support RoCE and can
be used to build a lossless Ethernet network to ensure zero packet loss.
RoCE include the following key features，include PFC(Priority based Flow Control), ECN(Explicit
Congestion Notification), DCBX(Data Center Bridging Capability Exchange Protocol), ETS(Enhanced
Transmission Selection).
Flexible programmability
The switch uses industry-leading programmable switching chips that allow users to define the
forwarding logic as needed.
Users can develop new features that meet the evolving trend of their networks through simple
software updates.
Powerful SDN capacity
H3C S6850 switch series adopt the next-generation chip with more flexible Openflow FlowTable,
more resources and accurate ACL matching, which greatly improves the software-defined network
(SDN) capabilities and meet the demand of data center SDN network.
H3C S6850 switch series can interconnect with H3C SeerEngine-DC Controller through standard
protocols such as OVSDB, Netconf and SNMP to implement network automatic deployment and
configuration.
4
H3C S6850 Series Data Center Switches
Comprehensive security control policies
H3C S6850 series switch supports AAA, RADIUS and user account based authentication, IP, MAC,
VLAN, port-based user identification, dynamic and static binding; when working with the H3C iMC
platform, it can conduct real time management, instant diagnosis and crackdown on illicit network
behavior.
H3C S6850 series switch supports enhanced ACL control logic, which enables an enormous amount
of in-port and out-port ACL, and delegate VLAN based ACL. This simplifies user deployment process
and avoids ACL resource wastage. S6850 series switch can also take advantage of Unicast Reverse
Path Forwarding (Unicast RFP). When the device receives a packet, it will perform the reverse check
to verify the source address from which the packets are supposedly originated, and will drop the
packet if such path doesn’t exist. This can effectively prevent the source address spoofing in the
network.
Multiple reliability protection
The S6850 series switch provides multiple reliability protection at both switch and link levels. With
over current, overvoltage, and overheat protection, all models have a redundant pluggable power
module, which enables flexible configuration of AC or DC power modules based on actual needs.
The entire switch supports fault detection and alarm for power supply and fan, allowing fan speed
to change to suit different ambient temperatures.
The switch supports diverse link redundancy technologies such as H3C proprietary RRPP, VRRPE,
and Smart Link. These technologies ensure quick network convergence even when large amount of
traffic of multiple services runs on the network.
Flexible choice of airflow
To cope with data center cooling aisle design, the H3C S6850 series switch comes with flexible
airflow design, which features bi-cooling aisles in the front and back. Users may also choose the
direction of airflow (from front to back or vice versa) by selecting a different fan tray.
Excellent manageability
The switch improves system management through the following ways:
Provides multiple management interfaces, including the serial console port, mini USB console port,
USB port, two out-of-band management ports, and two SFP ports. The SFP ports can be used as in-
band management port through which encapsulated sampling packets are sent to the controller or
other management devices for deep analysis.
Supports multiple access methods, including SNMPv1/v2c/v3, Telnet, SSH 2.0, SSL, and FTP.
Supports standard NETCONF APIs that allow users to configure and manage the switch, enhancing
the compatibility with third-party applications.
5
H3C S6850 Series Data Center Switches
Hardware Specification
Item
Dimensions (H × W × D)
Weight
Serial console port
Out-of-band management port
Mini USB console port
USB port
QSFP28 port
SFP28 port
SFP port
Expansion slot
CPU
Flash/SDRAM
Latency
Switching capacity
Forwarding capacity
Buffer(byte)
AC-input voltage
DC-input voltage
Power module slot
Fan tray slot
Air flow direction
S6850-56HF
43.6 × 440 × 460 mm (1.72 × 17.32 × 18.11 in)
≤ 15 kg (33.07 lb)
1
One GE copper port and one GE fiber port
1
1
8
48
2
-
2.2GHz@4Core
4GB/8GB
<1μs
4 Tbps
2024 Mpps
32M
90v AC to 264v AC
–40v DC to –72v DC
2
S6850-2C
44.2 × 440 × 660 mm (1.74 × 17.32 × 18.11 in)
≤ 16 kg (35.27 lb)
1
One GE copper port and one GE fiber port
1
1
2
-
-
2
2.2GHz@4Core
4GB/8GB
<1μs
3.6Tbps
2024 Mpps
32M
90v AC to 264v AC
–40v DC to –72v DC
2
5 Hot-swappable fan, fan speed adjustable and wind invertible
From front to rear or from rear to front
Single AC: 167 W
From front to rear or from rear to front
Single AC: 136 W
Dual AC: 148 W
Single DC: 132 W
Dual DC: 146 W
Single AC: 273 W ( with LSWM18CQ)
Dual AC: 282 W( with LSWM18CQ)
Single DC: 268 W( with LSWM18CQ)
Dual DC: 275 W( with LSWM18CQ)
Single AC:932 ( with LSWM18CQ)
Dual AC:963( with LSWM18CQ)
Single DC:915( with LSWM18CQ)
Dual DC: 939( with LSWM18CQ)
34
1
Static power consumption
Dual AC: 179 W
Single DC: 154 W
Dual DC: 174 W
Single AC: 201 W
Typical power consumption
Dual AC: 224 W
Single DC: 198 W
Dual DC: 210 W
Single AC: 686
Maximum heat consumption
(BTU/hour)
Dual AC: 765
Single DC: 676
Dual DC: 717
Operating temperature
Operating humidity
0°C to 45°C (32°F to 113°F)
5% to 95%, noncondensing
33.2
1
MTBF(year)
MTTR(hour)
6
H3C S6850 Series Data Center Switches
Software Specification
Item Feature description
IRF2.0
Device Virtualization M-LAG(DRNI)
S-MLAG
BGP-EVPN
Network Virtualization VxLAN
EVPN ES
L2 VxLAN gateway
L3 VxLAN gateway
Distributed VxLAN gateway
Centralized VxLAN gateway
VxLAN EVPN VxLAN
manual configured VxLAN
IPv4 VxLAN tunnel
IPv6 VxLAN tunnel
QinQ VxLAN access
SDN H3C SeerEngine-DC
PFC and ECN
DCBX
Lossless network
RDMA and ROCE
PFC deadlock watchdog
ECN overlay
ROCE stream analysis
Openflow1.3
Programmability
Netconf
Ansible
Python//TCL/Restful API to realize DevOps automated operation and maintenance
Traffic analysis
Sflow
Netstream, only S6850-2C
Port-based VLANs
Mac-based VLAN ,Subnet-based VLAN and Protocol VLAN
VLAN mapping
VLAN QinQ
MVRP(Multiple VLAN Registration Protocol)
Super VLAN
PVLAN
Dynamic learning and aging of mac address entries
MAC address Dynamic,static and blackhole entries
Mac address limiting on ports
RIP(Routing Information Protocol) v1/2
OSPF (Open Shortest Path First) v1/v2
ISIS(Intermediate System to Intermediate system)
IPv4 routing BGP (Border Gateway Protocol)
Routing policy
VRRP
PBR
7
H3C S6850 Series Data Center Switches
Item Specification
RIPng
OSPFv3
IPv6 routing
IPv6 ISIS
BGP4+
Routing policy
VRRP
PBR
Support L3 MPLS VPN
Support L2 VPN: VLL (Martini, Kompella)
Support VPLS, VLL
MPLS/VPLS
Support hierarchical VPLS and QinQ+VPLS access
Support P/PE function
Support LDP protocol
Support MCE
Support MPLS OAM
IGMP snooping
MLD snooping
IPv4 and IPv6 multicast VLAN
Multicast
IPv4 and IPv6 PIM snooping
IGMP and MLD
PIM and IPv6 PIM
MSDP
Multicast VPN
LACP
STP/RSTP/MSTP protocol, PVST compatible
STP Root Guard and BPDU Guard
RRPP and ERPS
Reliability Ethernet OAM
Smartlink
DLDP
BFD for OSPF/OSPFv3, BGP/BGP4, IS-IS/IS-ISv6, PIM/IPM for IPv6 and Static route
VRRP and VRRPE
Weighted Random Early Detection (WRED) and tail drop
Flexible queue scheduling algorithms based on port and queue, including strict priority (SP), Weighted
Deficit Round Robin (WDRR), Weighted Fair Queuing (WFQ), SP + WDRR, and SP + WFQ.
Traffic shaping
QOS
Packet filtering at L2 (Layer 2) through L4 (Layer 4); flow classification based on source MAC address,
destination MAC address, source IP (IPv4/IPv6) address, destination IP (IPv4/IPv6) address, port,
protocol, and VLAN to apply qos policy,including mirroring,redirection,priority remark etc.
Committed access rate (CAR)
Account by packet and byte
COPP
FC/FOCE
FC, FC subcard is supported on S6850-2C
FCOE
gRPC
Telemetry ERSPAN
Mirror on drop
8
H3C S6850 Series Data Center Switches
Item Specification
Telemetry Stream
INT
iNQA
Packet trace, Packet capture
Console telnet and SSH terminals
SNMPv1/v2/v3
ZTP
System log
Telemetry
Configuration and
maintenance
File upload and download via FTP/TFTP, BootRom update and remote update
NQA
ping,tracert
VxLAN ping and VxLAN tracert
NTP
PTP(1588v2)
GIR Graceful Insertion and Removal
Macsec, Macsec subcard is supported on S6850-2C and only 100G macsec subcard can support 256-bit
AES encryption
Micro-Segmentation
Hierarchical management and password protection of users
Authentication methods,including AAA,RADIUS and HWTACACS
Support DDos, ARP attack and ICMP attack function
Security and management
IP-MAC-port binding and IP Source Guard
SSH 2.0
HTTPS
SSL
PKI
Boot ROM access control (password recovery)
RMON
FCC Part 15 Subpart B CLASS A
ICES-003 CLASS A
VCCI CLASS A
CISPR 32 CLASS A
EN 55032 CLASS A
AS/NZS CISPR32 CLASS A
EMC CISPR 24
EN 55024
EN 61000-3-2
EN 61000-3-3
ETSI EN 300 386
GB/T 9254
YD/T 993
802.3x/802.3ad/802.3AH/802.1P/802.1Q/802.1X/802.1D/802.1w/802.1s/802.1AG
802.1x/802.1Qbb/802.1az/802.1Qaz
UL 60950-1
CAN/CSA C22.2 No 60950-1
IEC 60950-1
IEEE Standard
Safety EN 60950-1
AS/NZS 60950-1
FDA 21 CFR Subchapter J
GB 4943.1
9
H3C S6850 Series Data Center Switches
Performance and scalability
Item
Virtualization
Description
IRF2.0 stack
M-LAG device number
ED group
9
2
8
18K/pipe, total 2 pipes
2304/pipe, total 2 pipes
10752/pipe, total 2 pipes
2048
1K
1K
9416
4
1000
256
288K max
272K max
136K max
324K max
162K max
4000
4000
16K
4000
4000
8K
1024
256
max 4K
2-128
4095
1K
2500
2K
16K
16K
2K
8K
2K
2K
4094
ACL
max number of ingress ACLs
max number of ingress Car
max number of ingress Counter
max number of egress ACLs
max number of egress Car
max number of egress Counter
Forwarding table
Jumbo frame length(byte)
Mirroring group
PBR policy
PBR node
max number of MACs per switch
max number of ARP entries IPv4
max ND table size for IPv6
max number of unicast routes IPv4
max number of unicast routes IPv6
IPv4 l2 multicast group
IPv4 l3 multicast group
IPv4 multicast routing
IPv6 l2 multicast group
IPv6 l3 multicast group
IPv6 multicast routing
LAGG group
LAGG member per group
ECMP group
ECMP member per group
VRF
Interface
Loopback interface number
L3 sub interface number
SVI interface number
VxLAN AC number
VxLAN VSI number
VxLAN tunnel number
VSI interface number
IPv4 tunnel number
IPv6 tunnel number
VLAN number
10
H3C S6850 Series Data Center Switches
Performance and scalability
Performance
Description
RIB
MSTP instance
PVST instance
PVST logical port number
VRRP VRID
VRRP group
NQA group
1M
64
510
2000
255
256
32
4000
1K
1K
4K
2K
4000
Static table
static mac-address
static multicast mac-address
static ARP
static ND
static IPv4 routing table
static IPv6 routing table
Data Center Application
The typical data center application is an EVPN-VxLAN design,S12500G-AF or S12500X-AF
switches work as spine or spine/border, S68XX series work as leaf and border or ED. From this
design, the usres can get a non-blocking large L2 system.
11
H3C S6850 Series Data Center Switches
Order information
PID
LS-6850-56HF
LS-6850-2C
Power
LSVM1AC650
LSVM1DC650
Fan
LSWM1FANSAB
LSWM1FANSA
Module
LSWM18QC
LSWM124XG2Q
LSWM124XGT2Q
LSWM124XG2QL
LSWM124XG2QFC
LSWM18CQ
LSWM116Q
LSWM124TG2H
LSWM18CQMSEC
Transceiver
SFP-GE-LH80-SM1550
SFP-FE-LX-SM1310-A
SFP-FE-SX-MM1310-A
SFP-FE-LH40-SM1310
SFP-GE-LX-SM1310-A
SFP-GE-LH40-SM1310
SFP-GE-LH40-SM1550
SFP-GE-SX-MM850-A
SFP-GE-T
QSFP-100G-LR4-
WDM1300
QSFP-100G-LR4L-
WDM1300
QSFP-100G-PSM4-
SM1310
QSFP-100G-SR4-MM850
QSFP-100G-LR4L-
WDM1300
QSFP-100G-LR4-
WDM1300
QSFP-40G-LR4-
WDM1300
QSFP-40G-BIDI-SR-
MM850
QSFP+ 40GBASE Optical Transceiver Module (1310nm,10km,LR4,LC)
QSFP+ 40GBASE BIDI Optical Transceiver Module (850nm,100m,SR)
100G QSFP28 Optical Transceiver Module(1310nm,10km,LR4,WDM,LC)
Description
H3C S6850-56HF L3 Ethernet Switch with 48 SFP28 Ports and 8 QSFP28 Ports
H3C S6850-2C L3 Ethernet Switch with 2*QSFP28 Ports and 2*Interface Module
Slots
650W AC Power Supply Module
650W DC Power Supply Module
Fan Module (SW, 4056, DC, Air Inlets in Panel)
Fan Module (SW, 4056, DC, Air Inlets in Panel)
8-Port QSFP Plus Interface Card
24-Port SFP Plus and 2-Port QSFP Plus Interface Card with MACSec
24-Port 10GBASE-T and 2-Port QSFP Plus Interface Card with MACSec
24-Port SFP Plus and 2-Port QSFP Plus Interface Card
24 Ports SFP Plus and 2 Ports QSFP Plus Interface Card with FC
H3C 8-Port 100G Ethernet Optical Interface Module(QSFP28)
H3C 16-Port 40G Ethernet Optical Interface Module(QSFP Plus)
H3C 24-Port 25G Ethernet Optical Interface (SFP28) and 2-Port 100G Ethernet
Optical Interface (QSFP28) Module
H3C 8-Port 100G MACSEC Ethernet Optical Interface Module(QSFP28)
1000BASE-LH80 SFP Transceiver, Single Mode (1550nm, 80km, LC)
100BASE-LX SFP Transceiver, Single Mode (1310nm, 15km, LC)
100BASE-FX SFP Transceiver, Multi-Mode (1310nm, 2km, LC)
100BASE-LH40 SFP Transceiver, Single Mode (1310nm, 40km, LC)
1000BASE-LX SFP Transceiver, Single Mode (1310nm, 10km, LC)
1000BASE-LH40 SFP Transceiver, Single Mode (1310nm, 40km, LC)
1000BASE-LH40 SFP Transceiver, Single Mode (1550nm, 40km, LC)
1000BASE-SX SFP Transceiver, Multi-Mode (850nm, 550m, LC)
SFP GE Copper Interface Transceiver Module (100m,RJ45)
100G QSFP28 Optical Transceiver Module(1310nm,10km,LR4,WDM,LC)
100G QSFP28 Optical Transceiver Module (1310nm,2km,LR4L,CWDM4,LC)
100G QSFP28 Optical Transceiver Module (1310nm,500m,PSM4,MPO/APC)
100G QSFP28 Optical Transceiver Module (850nm,100m OM4,SR4,MPO)
100G QSFP28 Optical Transceiver Module (1310nm,2km,LR4L,CWDM4,LC)
12
H3C S6850 Series Data Center Switches
PID Description
Transceiver
QSFP-40G-LR4L-
WDM1300
QSFP+ 40GBASE Optical Transceiver Module (1310nm,2km,LR4L,LC)
QSFP-40G-LR4-QSFP+ 40GBASE Optical Transceiver Module (1310nm,10km,MPO/APC,LR4,Parallel
PSM1310 Single Mode)
QSFP+ 40GBASE Optical Transceiver Module (850nm,100m,SR4,Support 40G to
QSFP-40G-SR4-MM850
4*10G)
QSFP-40G-CSR4-QSFP+ 40GBASE Optical Transceiver Module (850nm,300m,CSR4,Support 40G to
MM850 4*10G)
Cable
QSFP-100G-D-AOC-
100G QSFP28 to 100G QSFP28 10m Active Optical Cable
10M
QSFP-100G-D-CAB-1M 100G QSFP28 to 100G QSFP28 1m Passive Cable
QSFP-100G-D-AOC-
100G QSFP28 to 100G QSFP28 20m Active Optical Cable
20M
QSFP-100G-D-CAB-3M 100G QSFP28 to 100G QSFP28 3m Passive Cable
QSFP-100G-D-CAB-5M 100G QSFP28 to 100G QSFP28 5m Passive Cable
QSFP-100G-D-AOC-7M 100G QSFP28 to 100G QSFP28 7m Active Optical Cable
QSFP-100G-4SFP-25G-
100G QSFP28 to 4x25G SFP28 1m Passive Cable
CAB-1M
QSFP-100G-4SFP-25G-
100G QSFP28 to 4x25G SFP28 3m Passive Cable
CAB-3M
QSFP-100G-4SFP-25G-
100G QSFP28 to 4x25G SFP28 5m Passive Cable
CAB-5M
LSWM1QSTK0 40G QSFP+ Cable 1m
LSWM1QSTK1 40G QSFP+ Cable 3m
LSWM1QSTK2 40G QSFP+ Cable 5m
QSFP-40G-D-AOC-10M 40G QSFP+ to 40G QSFP+ 10m Active Optical Cable
QSFP-40G-D-AOC-20M 40G QSFP+ to 40G QSFP+ 20m Active Optical Cable
QSFP-40G-D-AOC-7M 40G QSFP+ to 40G QSFP+ 7m Active Optical Cable
LSWM1QSTK3 40G QSFP+ to 4x10G SFP+ Cable 1m
LSWM1QSTK4 40G QSFP+ to 4x10G SFP+ Cable 3m
LSWM1QSTK5 40G QSFP+ to 4x10G SFP+ Cable 5m
New H3C Technologies Co., Limited
Copyright ©2022 New H3C Technologies Co., Limited Reserves all rights
Beijing Headquarters
Disclaimer: Though H3C strives to provide accurate information in this document, we cannot guarantee that details do not
Tower 1, LSH Center, 8 Guangshun South Street, Chaoyang
contain any technical error or printing error. Therefore, H3C cannot accept responsibility for any inaccuracy in this document.
District, Beijing, China
H3C reserves the right for the modification of the contents herein without prior notification
Zip: 100102
Hangzhou Headquarters
No.466 Changhe Road, Binjiang District, Hangzhou, Zhejiang,
China
Zip: 310052
Tel: +86-571-86760000
PID
13
IRF stack
M-LAG device number
De