Features Of Stacking Supported By The S3700 - Huawei Quidway S3700 Series Configuration Manual

Quidway S3700 Series Ethernet Switches
Configuration Guide - Device Management
collision occurs. Therefore, collision detection must be implemented at Layer 2 and Layer 3
after a stack system is divided.
The dividing of a stack system mentioned here refers to the case that the original master and
standby switches belong to different stack systems after the original stack system is divided. In
this case, the active/standby switchover is implemented on the stack system where the standby
switch belongs. After the active/standby switchover, the new master switch specifies the MAC
address of its own as the MAC address of the stack system. In addition, the new master switch
sends gratuitous ARP packets to instruct other switches to update their MAC address and
implements IP collision detection. It is required that the two newly-created stack systems be able
to receive gratuitous ARP packets. After the original stack system is divided, the original master
switch detects IP address collision if receiving gratuitous packets whose source IP address is the
same as the IP address of the master switch. At the same time, the original master switch keeps
sending gratuitous ARP packets until no ARP packet with the conflicted IP address is received.

3.3 Features of Stacking Supported by the S3700

The features of stacking supported by the S3700 are as follows:
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Issue 01 (2011-07-15)
The S3700EI supports the following routing features of stacking:
IPv4 static route, route-policy, OSPF, IPv6 static route, and RIP
The S3700SI supports the following routing features of stacking:
IPv4 static route, IPv6 static route, and RIP
The Switch supports the following Ethernet features of stacking:
Trunk, LACP, Blackhole MAC, Static MAC, Sticky MAC, MAC learning, common
VLAN, MUX VLAN, VLAN stacking, voice VLAN, LLDP-MED for voice VLAN, STP,
RSTP, MSTP, VLAN aggregation, port group, port security, and ARP
The Switch supports the following security features of stacking:
802.1x, MAC authentication, AAA, DHCP snooping, attack defense, storm control,
broadcast storm suppression, IPSG, MFF, MAC, and ACL
The Switch supports the following IP service features of stacking:
DHCP client, DHCP server, DHCP relay, DNS, and ND
The Switch supports the following multicast features of stacking:
Multicast policy, controllable multicast, IGMP snooping, MLD snooping, and multicast
load balancing
The Switch supports the following network management features of stacking:
NTP, RMON, SNMP, HGMP, ping, and tracert
The S3700EI supports the following reliability features of stacking:
VRRP for IPv4, VRRP for IPv6, Smart Link, and Monitor Link
The S3700SI supports the following reliability features of stacking:
Smart Link and Monitor Link
The Switch supports the following QoS features of stacking:
Traffic policy, priority mapping, traffic policing, traffic shaping, congestion avoidance,
congestion management, flow mirroring, and port mirroring
PoE, LLDP-MED for PoE, RSPAN, and information center
SSH, FTP (server or client), SFTP (server or client) TFTP client, and Telnet
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