show ip multicast vlan
-
- Last UpdatedAug 13, 2021
- 3 minutes read
Displays IGMP snooping information for a specific VLAN.
cluster
| Specifies a Multi-Chassis Trunking (MCT) cluster.
|
vlan-id
| Specifies the VLAN for which you want information. If you do not specify a
vlan-id, information for all VLANs is displayed.
|
Privileged EXEC mode
You can use the show ip multicast vlan command to display the querier information for a VLAN. This command displays the VLAN interface status and whether there is any other querier present with the lowest IP address. The following list provides the combinations of querier possibilities:
- Active Interface with no other querier present
- Passive Interface with no other querier present
- Active Interface with other querier present
- Passive Interface with other querier present
The show ip multicast vlan command displays the following information:
Output Field |
Description |
---|---|
Version |
The global IGMP version. |
Query |
How often a querier sends a general query on the interface. |
Group Age |
The number of seconds membership groups can be members of this group before aging out. |
Max Resp |
The maximum number of seconds a client waits before replying to a query. |
Other Qr |
How long it took a switch with a lower IP address to become a new querier. |
Unregistered IPv4 Multicast Packets Flooding |
Indicates whether flooding is enabled. |
cfg |
The IGMP version for the specified VLAN. |
vlan cfg |
The IGMP configuration mode, which is either passive or active. |
pimsm |
Indicates that PIM SM is enabled on the VLAN. |
rtr port |
The router ports, which are the ports receiving queries. |
local |
Entries learned on local interfaces of the cluster switch, for example, the local client edge port (CCEP) or cluster edge port (CEP). |
mct peer |
Entries learned by way of the MCT peer cluster switch. Control messages synchronize by way of the inter-chassis link (ICL) from the MCT peer cluster switch. |
The following example shows IGMP snooping information when the VLAN interface is active and no other querier is present with the lowest IP address.
device> show ip multicast vlan 11
Version=2, Intervals: Query=300, Group Age=620, Max Resp=10, Other Qr=605,
Leave Wait=2, Robustness=2
VL11: dft V2, vlan cfg active, 20 grp, 0 (*G) cache, no rtr port,
My Query address: 1.1.1.1 (ve/loopback)
e1/2/2 has 20 grp, QR, default V2
group: 225.1.11.14, life = 520
group: 225.1.11.6, life = 520
group: 225.1.11.12, life = 520
group: 225.1.11.16, life = 520
lg203 has 0 grp, QR, default V2 trunk
e31/2/1 has 0 grp, QR, default V2
The following example shows IGMP snooping information when the VLAN interface is passive and no other querier is present with the lowest IP address.
device> show ip multicast vlan 11
Version=2, Intervals: Query=125, Group Age=260, Max Resp=10, Other Qr=255,
Leave Wait=2, Robustness=2
VL11: dft V2, vlan cfg passive, 0 grp, 0 (*G) cache, no rtr port,
My Query address: 186.186.186.186 (ve/loopback)
e1/1/11 has 0 grp, non-QR (passive), default V2
e1/1/15 has 0 grp, non-QR (passive), default V2
The following example shows IGMP snooping information when the VLAN interface is active and another querier is present with the lowest IP address.
device> show ip multicast vlan 11
Version=2, Intervals: Query=125, Group Age=260, Max Resp=10, Other Qr=255,
Leave Wait=2, Robustness=2
VL11: dft V2, vlan cfg active, 0 grp, 0 (*G) cache, rtr ports,
router ports: lg203(160) 1.1.1.1,
My Query address: 4.4.4.4 (ve/loopback)
e1/2/8 has 0 grp, QR, default V2
lg203 has 0 grp, non-QR (QR=1.1.1.1, age=100, mrt=100), default V2 trunk
Release version | Command history |
---|---|
08.0.20 | This command was modified to display MCT cluster information. |
08.0.30 | This command was modified to display flooding information. |
08.0.50 | The output of this command was updated to include the My Query address field. |