show ip multicast vlan

Displays Internet Group Management Protocol (IGMP) snooping information for a specific VLAN.
Syntax
show ip multicast [ cluster ] vlan vlan-id group-address
Parameters
cluster
Specifies a Multi-Chassis Trunking (MCT) cluster.
vlan-id
Specifies the VLAN for which you want information.
group-address
Specifies a group address.
Modes

User EXEC mode

Usage Guidelines

You can use this 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

If you do not specify a VLAN ID, information for all VLANs is displayed.

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.

MVR Displays the status of Multicast VLAN Registration (MVR); whether it is enabled or disabled.
MVLAN Displays the dedicated multicast VLAN (MVLAN) specifically for multicast traffic distribution. This VLAN is the MVR source VLAN to which a range of multicast group addresses is assigned.

Max Resp

The maximum number of seconds a client waits before replying to a query.

Other Qr

The length of time 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.

mvr-s Indicates the VLAN is configured as a source VLAN.
mvr-r Indicates the VLAN is configured as a receiver VLAN.
sdvoe Indicates Software Defined Video-over-Ethernet (SDVoE) is enabled.
fast-leave-edge Indicates Fast Leave on edge ports is enabled.
sdvoe-auto-edge-port-track-active

Indicates SDVoE is enabled, edge ports are detected automatically, client tracking for IGMPv2 and IGMPv3 is enabled, and query packets are generated.
Edge ports Lists the edge ports on the device.
Non-edge ports Lists the configured non-edge ports.
Static Mcache profile id Lists the configured static mcache profiles. This information is displayed only if a profile is configured or SDVoE is enabled for the VLAN.
passive neighbors Lists the configured passive neighbors.

pimsm

Indicates that PIM SM is enabled on the VLAN.

rtr port

Indicates whether there are 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.

Multicast Aging Unit Mask

Stacking unit ID where flow is active (traffic ingression).
Examples

The following example displays MVR-related information for IGMP snooping configurations. 

device# show ip multicast vlan

Summary of all vlans. Please use "sh ip mu vlan <vlan-id>" for details
Version=2, Intervals: Query=11, Group Age=40, Max Resp=10, Other Qr=27,
Leave Wait=2, Robustness=2

Replication resource sharing: Enabled
Unregistered IPv4 Multicast Packets Flooding: Disabled
MVR: Enabled, MVLAN - 10

VL1: dft V2, vlan cfg passive, mvr-s, 0 grp, 0 (SG) cache, no rtr port
VL10: dft V2, vlan cfg passive, mvr-r, 1 grp, 1 (*G) cache, (dy-1, st-0) rtr ports

The following example shows IGMP snooping information when MVR is disabled. 

device# show ip multicast vlan
Summary of all vlans. Please use "sh ip mu vlan <vlan-id>" for details
Version=2, Intervals: Query=125, Group Age=260, Max Resp=10, Other Qr=255,
                      Leave Wait=2, Robustness=2

Replication resource sharing: Enabled
Unregistered IPv4 Multicast Packets Flooding: Disabled
MVR: Disabled, MVLAN – 0

The following example shows IGMP snooping information for a specified VLAN. 

device# show ip multicast vlan 1

Version=2, Intervals: Query=11, Group Age=40, Max Resp=10, Other Qr=27,
Leave Wait=2, Robustness=2

VL1: dft V2, vlan cfg passive, mvr-s, 0 grp, 0 (SG) cache, no rtr port
My Query address: 1.0.0.24 (ve/loopback)
Edge ports: ALL
Non-Edge ports: NONE

e1/1/1 has 0 grp, non-QR (passive), mvr-s, default V2
e1/1/2 has 0 grp, non-QR (passive), mvr-s, default V2
e1/1/3 has 0 grp, non-QR (passive), mvr-r, default V2
e1/1/4 has 0 grp, non-QR (passive), mvr-r, default V2

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

The following example shows IGMP snooping information for a VLAN when SDVoE is enabled..

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, sdvoe, fast-leave-edge, 0 grp, 7 (*G) cache, no rtr port
  My Query address: 1.1.1.1 (configured)
  Edge ports: e3/1/31, e3/1/34, 
  Non-Edge ports: lg13, 
  Static Mcache profile id: Default profile
  e3/1/31   has    0 grp, QR, default V2
  e3/1/34   has    0 grp, QR, default V2
  lg13      has    0 grp, QR, default V2 trunk

The following example shows IGMP snooping information for a VLAN when SDVoE auto-edge port is active.

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, sdvoe-auto-edge-port-track-active, 0 grp, 7 (*G) cache, no rtr port
  My Query address: 2.2.2.2 (configured)
  Static Mcache profile id: Default profile
  e3/1/41   has    0 grp, QR, default V2
  e3/1/42   has    0 grp, QR, default V2
  lg24      has    0 grp, QR, default V2 trunk

The following example shows IGMP snooping information for a VLAN, including information about edge ports and non-edge ports.

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, fast-leave-edge, 0 grp, 0 (*G) cache, no rtr port
  My Query address: 1.1.1.1 (configured)
  Edge ports: e3/1/31, e3/1/34, 
  Non-Edge ports: lg13, 
  e3/1/31   has    0 grp, QR, default V2
  e3/1/34   has    0 grp, QR, default V2
  lg13      has    0 grp, QR, default V2 trunk

The following example shows IGMP snooping information for a VLAN, including information about passive neighbors.

device> 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, sdvoe-auto-edge-port-track-active, 0 grp, 7 (*G) cache, no rtr port
    passive neighbors: lg23(260) 4.4.4.4, 
  My Query address: 2.2.2.2 (configured)
  Static Mcache profile id: Default profile
  e3/1/41   has    0 grp, QR, default V2
  e3/1/42   has    0 grp, QR, default V2
  lg23      has    0 grp, QR, default V2 trunk
  lg24      has    0 grp, QR, default V2 trunk

The following example shows IGMP snooping information for VLAN 11, including SDVoE configurations. In the example, the non-edge port is the only router port, and all other ports are edge ports..

device> show ip multicast vlan 11  
                
Version=2, Intervals: Query=200, Group Age=1020, Max Resp=20, Other Qr=1010,
             Leave Wait=3, Robustness=5

VL11: dft V2, sdvoe-auto-edge-port-track-passive, 1 grp, 8 (*G) cache, (dy-1, st-0) rtr ports
    	router ports: lg1(900) 3.3.3.3,  	       
  	    My Query address: None
  	    Static Mcache profile id: Default profile
  	    e1/2/6    has    1 grp, non-QR (passive), default V2
    	    group: 225.1.1.1, life = 980
  	     e3/2/7    has    0 grp, non-QR (passive), default V2
	        group: 225.1.1.1, life = 960
  	     lg1       has    1 grp, non-QR (QR=3.3.3.3, age=120, mrt=20), default V2 trunk
    	    group: 225.1.1.2, life = 1020
    	    group: 225.1.1.1, life = 1020

The following example shows IGMP snooping information for VLAN 11, including SDVoE configurations. In the example, all non-edge ports are detected automatically and listed (lg1 and lg2).

device> show ip multicast vlan 11                  
	Version=2, Intervals: Query=200, Group Age=1020, Max Resp=20, Other Qr=1010,
              Leave Wait=3, Robustness=5

	VL11: dft V2, sdvoe-auto-edge-port-track-active, 1 grp, 8 (*G) cache, no rtr port
    	    passive neighbors: lg1(920), lg2(960) 
  	  My Query address: 3.3.3.3 (configured)
  	  Static Mcache profile id: Default profile
  	  lg1       has    0 grp, QR, default V2 trunk
	    group: 225.1.1.1, life = 1000
  	  lg2       has    1 grp, QR, default V2 trunk
	    group: 225.1.1.2, life = 1000
    	    group: 225.1.1.1, life = 1020

The following example shows IGMP snooping information for all VLANs, including information for stacking units where the traffic flow is active.

device> show ip multicast vlan

Version=2, Intervals: Query=125, Group Age=500, Max Resp=10, Other Qr=255,
Leave Wait=2, Robustness=2
Replication resource sharing: Enabled
Unregistered IPv4 Multicast Packets Flooding: Disabled
Multicast Aging Unit Mask: 0x3
VL1 no snoop : no local config
VL20: dft V1, glb cfg passive, 0 grp, 0 (*G) cache, no rtr port
VL100 no snoop: PIM on its VE/port
History
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 modified to include the My Query address field.
09.0.00 The output of this command was modified to include SDVoE information, information for edge ports and non-edge ports, passive neighbors, and the configured static mache profile.
09.0.10 The output of this command was modified to include MVR information.
10.0.00 The output of this command was modified to include information for stacking units where the traffic flow is active.
Parent topic: Show Commands