3com 5500-ei pwr Instrução De Instalação

 

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In a network where the topology is unlikely to change, you can configure a port on the switch as a static 

router port, so that the switch has a static connection to a multicast router and receives IGMP messages 

from that router.  

Follow these steps to configure a static router port in Ethernet port view: 

Enter system view 

system-view 

— 

Enter Ethernet port view 

interface interface-type 
interface-number 

— 

Configure the current port as a 
static router port 

multicast static-router-port 
vlan vlan-id 

Required 

By default, no static router port 
is configured. 

 

Follow these steps to configure a static router port in VLAN view: 

Enter system view 

system-view 

— 

Enter VLAN view 

vlan vlan-id 

— 

Configure a specified port as a 
static router port 

multicast static-router-port 
interface-type interface-number

Required 

By default, no static router port 
is configured. 

 

A MAC-forced forwarding (MFF) network isolates hosts at Layer 2 and allows multicast packets to pass 

through user ports. However, the following case may occur:  

If host A joins a multicast group, it sends IGMP membership reports, and then the switch connected to it 

forwards the messages out every router port. If the user port on the switch connecting to host B 

becomes a router port, host B may receive the IGMP membership report, and thus obtain other 

information of host A from the message.  

To avoid this, you can disable a port of the Switch 5500-EI series switches from becoming a router port 

so that this port will not forward IGMP membership report messages.  

Follow these steps to disable a port from becoming a router port: 

Enter system view 

system-view 

— 

Enter Ethernet port view  

interface interface-type 
interface-number 

— 

Disable the port from 
becoming a router port 

Required  

Not disabled by default.