mld-show
Multicast Listener Discovery (MLD) is a Layer 3 multicast protocol used between IPv6 hosts and routers similar to how IGMP is used for IPv4. MLD snooping allows a switch to examine MLD packets and make forwarding decisions based on their content.
MLD snooping constrains IPv6 multicast traffic at Layer 2 by configuring Layer 2 LAN ports dynamically to forward IPv6 multicast traffic only to those ports that want to receive it.
The default behavior, when MLD Snooping is not configured, multicast traffic will be forwarded to all the switch ports, impacting switch performance.
Syntax mld-show
|
group-ip ip-address |
Specifies the name of the IP group for the MLD configuration. |
|
node-ip ip-address |
Specifies the name of the IP host for the MLD configuration. |
|
vnet vnet-name |
Specifies the name of the VNET assigned to the MLD configuration. |
|
l2-net l2-net-name |
Specifies the name of the Layer 2 network. |
|
vlan vlan-id |
Specifies the ID of the VLAN for the MLD configuration. |
|
port port-number |
Specifies the number of the port for the MLD configuration. |
|
source-ip ip-address |
Specifies the IP source name for the MLD configuration. |
|
node-type host|router|switch |
Specifies the node type as host or router. |
|
expires expires-number(s) |
Specifies the ageout time. |
Defaults None.
Access CLI
History
|
Version 2.3 |
Command introduced. |
|
Version 2.4.1 |
The parameter, switch, deprecated. The parameter, vnet, added. |
|
Version 3.0.0 |
The parameter, l2-net, added. |
Usage Default behavior, when MLD is not configured, forwards multicast traffic to all the switch ports, impacting switch performance.
Examples To display MLD parameters for the local switch, use the following command:
CLI network-admin@switch > mld-show
|
switch: |
spine01 |
|
group-ipv6: |
ff02::1:ff11:1111 |
|
host-ipv6: |
fe80::3636:3bff:fece:44f2 |
|
vlan: |
100 |
|
port: |
8,69 |
|
source-ipv6: |
2001:db8::2:1 |
mld-router-show
Multicast Listener Discovery (MLD) is a Layer 3 multicast protocol used between IPv6 hosts and routers similar to how IGMP is used for IPv4. MLD snooping allows a switch to examine MLD packets and make forwarding decisions based on their content.
MLD snooping constrains IPv6 multicast traffic at Layer 2 by configuring Layer 2 LAN ports dynamically to forward IPv6 multicast traffic only to those ports that want to receive it.
The default behavior, when MLD Snooping is not configured, multicast traffic is forwarded to all the switch ports, impacting switch performance.
Syntax mld-router-show
|
node-ip ip-address |
Specifies the name of the IP node for the MLD configuration. |
|
vnet vnet-name |
Specifies the name of the VNET assigned to the MLD configuration. |
|
l2-net l2-net-name |
Specifies the name of the Layer 2 network. |
|
vlan vlan-id |
Specifies the ID of the VLAN for the MLD configuration. |
|
port port-number |
Specifies the number of the port for the MLD configuration. |
Defaults None.
Access CLI
History
|
Version 2.3 |
Command introduced. |
|
Version 2.4.1 |
The parameters, group-ip, source-ip, node-type, and expires, deprecated. The parameter, vnet, added. |
|
Version 3.0.0 |
The parameter, l2-net, added. |
Usage Default behavior, when MLD Snooping is not configured, multicast traffic is forwarded to all the switch ports, impacting switch performance.
Examples To display MLD router parameters for the local switch, use the following command:
CLI network-admin@switch > mld-router-show
mld-snooping-modify
Multicast Listener Discovery (MLD) is a Layer 3 multicast protocol used between IPv6 hosts and routers similar to how IGMP is used for IPv4. MLD snooping allows a switch to examine MLD packets and make forwarding decisions based on their content.
MLD snooping constrains IPv6 multicast traffic at Layer 2 by configuring Layer 2 LAN ports dynamically to forward IPv6 multicast traffic only to those ports that want to receive it.
The default behavior, when you do not configure MLD Snooping, Netvisor forwards multicast traffic to all the switch ports, impacting switch performance.
Syntax mld-snooping-modify
|
scope local|fabric |
Modify the scope of MLD Snooping to local or fabric. |
|
enable|disable |
Enable, disable MLD Snooping. Default: disable |
|
mldv1-vlans vlan-list |
VLANs on which to enable snooping and use MLDv1 protocol. Default: none |
|
mldv2-vlans vlan-list |
VLANs on which to enable snooping and use MLDv2 protocol. Default 1 - 4092 |
|
snoop-linklocal-vlans vlan-list |
Allow snooping of link-local groups (ff02::/16) on these vlans. Default 1 - 4092 |
|
snoop-nd-vlans vlan-list |
Allow snooping of ND SN Multicast addresses (ff02::1:ff/104) on these vlans. Default 1 - 4092 |
|
query-interval seconds |
Specify the interval between queries in seconds. |
|
query-max-response-time seconds |
Specify the maximum response time for a query. |
Defaults See above description
Access CLI
History
|
Version 2.3 |
Command introduced. |
|
Version 2.4 |
The parameters, version and snoop-link, introduced. |
|
Version 2.5.2 |
The parameters, version, snoop-linklocal, and snoop-nd deprecated. The parameters, mldv1-vlans, mldv2-vlans, snoop-linklocal-vlans, and snoop-nd-vlans introduced. |
|
Version 3.1.0 |
The parameters, query-interval and query-max-response-time, added. |
Usage When MLD Snooping is not configured, multicast traffic is forwarded to all the switch ports, impacting switch performance. Use this command to modify the scope of MLD Snooping, enable snooping on specific VLANs, link-local groups, or ND SN multicast addresses, or to disable snooping.
Examples To modify the scope from local to fabric use the following syntax:
CLI network-admin@switch > mld-snooping-modify scope fabric
mld-snooping-show
Multicast Listener Discovery (MLD) is a Layer 3 multicast protocol used between IPv6 hosts and routers similar to how IGMP is used for IPv4. MLD snooping allows a switch to examine MLD packets and make forwarding decisions based on their content.
MLD snooping constrains IPv6 multicast traffic at Layer 2 by configuring Layer 2 LAN ports dynamically to forward IPv6 multicast traffic only to those ports that want to receive it.
When MLD Snooping is not configured multicast traffic, by default, is forwarded to all the switch ports thus impacting switch performance.
Syntax mld-snooping-show
Defaults None.
Access CLI
History
|
Version 2.3 |
Command introduced. |
|
Version 2.4 |
The parameters, version and snoop-link, introduced. |
|
Version 2.5.2 |
The parameters, version, snoop-linklocal, and snoop-nd deprecated. The parameters, mldv1-vlans, mldv2-vlans, snoop-linklocal-vlans, and snoop-nd-vlans introduced. |
|
Version 3.1.0 |
The parameters, query-interval and query-max-response-time, added. |
Usage The default behavior, when MLD Snooping is not configured, multicast traffic is forwarded to all the switch ports, impacting switch performance.
Examples To display the format for all options for the local switch, use the following command:
CLI network-admin@switch > mld-snooping-show format all
|
switch: |
switch name |
|
enable: |
yes |
|
mlvdv1-vlans |
none |
|
mldv2-vlans |
1-4092 |
|
snoop-linklocal-vlans |
1-4092 |
|
snoop-nd-vlans |
1-4092 |
|
nvOS-managed-vlans |
100 |
|
interop-v1-vlans |
none |
|
vlans |
1-99,101-4092 |