Brocade Communications Systems IPMC5000PEF Manual De Usuario

System Parameters     Default    Maximum    Current    Configured

igmp-snoop-mcache     512        8192       300        300      

The IGMP snooping mcache contains multicast forwarding information for VLANs. To display
information in the multicast forwarding mcache, enter the show ip multicast mcache command.

device#show ip multicast mcache

Example: (S G) cnt=: cnt is number of SW processed packets

    OIF: e1/22 TR(1/32,1/33), TR is trunk, e1/32 primary, e1/33 output

vlan 10, 1 caches. use 1 VIDX

1    (10.10.10.2 239.0.0.3) cnt=0

     OIF: tag e2

     age=2s up-time=2s change=2s vidx=8191 (ref-cnt=1)

Syntax: show ip multicast mcache

The following table describes the output of the show ip multicast mcache command.

(source group) Source and group addresses of this data stream. (* group) means match group only; (source

group) means match both.

cnt

The number of packets processed in software. Packets are switched in hardware, which increases
this number slowly.

OIF

The output interfaces. If 

entire vlan

 is displayed, this indicates that static groups apply to the

entire VLAN.

age

The mcache age. The mcache will be reset to 0 if traffic continues to arrive, otherwise the mcache
will be aged out when it reaches the time defined by the 

 command.

uptime

The up time of this mcache in seconds.

vidx

Vidx specifies output port list index. Range is from 4096 through 8191

ref-cnt

The vidx is shared among mcaches having the same output interfaces. Ref-cnt indicates the
number of mcaches using this vidx.

Displaying software resource usage for VLANs

To display information about the software resources used, enter the show ip multicast resource
command.

device#show ip multicast resource

                      alloc in-use  avail get-fail    limit  get-mem  size init

igmp group              256      1    255        0    32000        1    16  256

igmp phy port          1024      1   1023        0   200000        1    22 1024

.... entries deleted ...

snoop mcache entry      128      2    126        0     8192        3    56  128

total pool memory 109056 bytes

has total 2 forwarding hash

VIDX sharing hash   : size=2      anchor=997  2nd-hash=no  fast-trav=no

Available vidx: 4060. IGMP/MLD use 2

Syntax: show ip multicast resource

The following table describes the output displayed by the show ip multicast resource command.

Displaying software resource usage for VLANs