Dell PowerConnect B-FCXs Configuration Manual page 707

Syntax: show ip multicast mcache
The following table describes the output of the show ip multicast mcache command.
Field
(source group)
cnt
OIF
age
uptime
vidx
ref-cnt
Displaying PIM sparse snooping information
PIM sparse mode snooping allows a device to listen for join or prune messages exchanged between
PIM routers, which helps reduce unwanted traffic. To display PIM snooping information, enter the
following command.
PowerConnect# show ip multicast pimsm-snooping
vlan 1, has 1 caches.
1
vlan 70, has 1 caches.
1
This output shows the number of OIF due to PIM out of the total OIF. The join or prune messages
are source-specific. In this case, if the mcache is in (* G), the display function will also print the
traffic source information.
Displaying software resource usage for VLANs
To display information about the software resources used, enter the following command.
PowerConnect# show ip multicast resource
igmp group
igmp phy port
.... entries deleted ...
snoop mcache entry
total pool memory 109056 bytes
has total 2 forwarding hash
VIDX sharing hash
Available vidx: 4060. IGMP/MLD use 2
PowerConnect B-Series FCX Configuration Guide
53-1002266-01
Description
Source and group addresses of this data stream. (* group) means match group only; (source
group) means match both.
The number of packets processed in software. Packets are switched in hardware, which
increases this number slowly.
The output interfaces. If entire vlan is displayed, this indicates that static groups apply to
the entire VLAN.
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 ip multicast mcache-age
command.
The up time of this mcache in minutes.
Vidx specifies output port list index. Range is from 4096 to 8191
The vidx is shared among mcaches having the same output interfaces. Ref-cnt indicates the
number of mcaches using this vidx.
(1.2.10.102 225.1.1.1) has 0 pim join ports out of 1 OIF
(* 226.1.2.3) has 2 pim join ports out of 2 OIF
0/1/14 (age=60), 0/1/13 (age=60),
0/1/14 has 1 src: 1.1.30.99(60)
0/1/13 has 1 src: 1.1.30.99(60)
alloc in-use
256
1024
128
: size=2
Displaying IGMP snooping information
avail get-fail
1 255 0
1 1023 0 200000
2 126 0
anchor=997 2nd-hash=no
limit get-mem size init
32000 1 16
1 22 1024
8192 3 56
fast-trav=no
22
256
128
665