3com S7906E Instruccion De Instalación

 

1-27 

      IP group address:FF1E::101 

        (::, FF1E::101): 

          Attribute:    Host Board 

          Host port unit board: Mask(0x04) 

          Host port(s):total 2 port. 

            GE2/0/3                (D) 

            GE2/0/4                (D) 

    MAC group(s): 

      MAC group address:3333-0000-1001 

          Host port unit board: Mask(0x04) 

          Host port(s):total 2 port. 

            GE2/0/3 

            GE2/0/4 

As shown above, GigabitEthernet 2/0/3 and GigabitEthernet 2/0/4 of Switch A have joined IPv6 

multicast group FF1E::101. 

z 

As shown in 

, Router A connects to an IPv6 multicast source (Source) through 

GigabitEthernet 2/0/2, and to Switch A through GigabitEthernet 2/0/1. 

z 

MLDv1 is to run on Router A, and MLDv1 Snooping is to run on Switch A, Switch B and Switch C, 

with Router A acting as the MLD querier. 

z 

Host A and host C are permanent receivers of IPv6 multicast group FF1E::101. GigabitEthernet 

2/0/3 and GigabitEthernet 2/0/5 on Switch C are required to be configured as static member ports 

for multicast group 224.1.1.1 to enhance the reliability of multicast traffic transmission. 

z 

Suppose STP runs on the network. To avoid data loops, the forwarding path from Switch A to 

Switch C is blocked under normal conditions, and IPv6 multicast traffic flows to the receivers 

attached to Switch C only along the path of Switch A—Switch B—Switch C. 

z 

It is required to configure GigabitEthernet 2/0/3 that connects Switch A to Switch C as a static 

router port, so that IPv6 multicast traffic can flow to the receivers nearly uninterruptedly along the 

path of Switch A—Switch C in the case that the path of Switch A—Switch B—Switch C gets 

blocked.  

 

 

If no static router port is configured, when the path of Switch A—Switch B—Switch C gets blocked, at 

least one MLD query-response cycle must be completed before the IPv6 multicast data can flow to the 

receivers along the new path of Switch A—Switch C, namely IPv6 multicast delivery will be interrupted 

during this process.  

For details about the Spanning Tree Protocol (STP), refer to MSTP Configuration in the Access 

Volume.