| Sun Ethernet Fabric Operating System CLI Base Reference Manual
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MLDS |
MLD is a protocol used by an IPv6 router to discover the presence of multicast listeners (nodes willing to receive multicast packets) on its directly attached links. IPv6 routers also use MLD to discover specifically which multicast address is of interest to neighboring nodes. MLD can also be used by applications to listen to some multicast groups.
MLDS software is designed in accordance with the FSAP frame to ensure a high level of portability.
The list of CLI commands for the configuration of MLDS is common to both Single Instance and multiple instance except for a difference in the prompt that appears for the switch with multiple instance support.
The prompt for the Global Configuration mode is as follows:
7.1 MLDS Commands
The list of CLI commands for the configuration of MLDS is as follows:
7.1.1 ipv6 mld snooping
Enables MLD snooping in the switch or a specific VLAN. The no form of the command disables MLD snooping in the switch or a specific VLAN.
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Mode
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Global Configuration
Config-VLAN
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Defaults
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MLD snooping is globally disabled
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Example
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SEFOS(config)# ipv6 mld snooping
SEFOS(config-vlan)# ipv6 mld snooping
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Notes
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- When MLD snooping is enabled globally, it is enabled in all the existing VLAN interfaces. When MLD snooping is disabled globally, it is disabled in all the existing VLAN interfaces.
- GMRP must be disabled for MLDS to be enabled.
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7.1.2 ipv6 mld snooping proxy-reporting
Enables proxy reporting in the MLD snooping switch. The no form of the command disables proxy reporting in the MLD snooping switch.
ipv6 mld snooping proxy-reporting
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no ipv6 mld snooping proxy-reporting
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Mode
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Global Configuration
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Defaults
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Proxy-reporting is enabled
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Example
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SEFOS(config)# ipv6 mld snooping proxy-reporting
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Notes
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Proxy reporting can be enabled in the MLD snooping switch only if the proxy is disabled in the switch.
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- show ipv6 mld snooping globals - Displays the global MLD snooping information.
- no ipv6 mld snooping proxy-reporting - Disables proxy reporting in the MLD snooping switch.
7.1.3 snooping multicast-forwarding-mode
Specifies the snooping multicast forwarding mode (IP based or MAC based).
snooping multicast-forwarding-mode {ip | mac}
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Syntax Description
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ip - IP address based
mac - MAC address based
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Mode
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Global Configuration
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Defaults
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ip
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Example
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SEFOS(config)# snooping multicast-forwarding-mode mac
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7.1.4 ipv6 mld snooping mrouter-time-out
Sets the MLD snooping router purge time-out after which the port gets deleted if no MLD router control packets are received. The no form of the command sets the MLD snooping router port purge time to the default value.
ipv6 mld snooping mrouter-time-out 60-600_seconds
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no ipv6 mld snooping mrouter-time-out
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Mode
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Global Configuration
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Defaults
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125
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Example
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SEFOS(config)# ipv6 mld snooping mrouter-time-out 75
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7.1.5 ipv6 mld snooping port-purge-interval
Sets the MLD snooping port purge time interval after which the port gets deleted if MLD reports are not received. The no form of the command sets the MLD snooping port purge time to default value.
ipv6 mld snooping port-purge-interval 130-1225_seconds
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no ipv6 mld snooping port-purge-interval
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Mode
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Global Configuration
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Defaults
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260
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Example
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SEFOS(config)# ipv6 mld snooping port-purge-interval 200
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7.1.6 ipv6 mld snooping report-suppression-interval
Sets the MLD snooping report-suppression time interval for which MLDv1 report messages will not get forwarded onto the router ports for the same group. The no form of the command sets the MLD snooping report-suppression time to default value.
ipv6 mld snooping report-suppression-interval 1-25_seconds
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no ipv6 mld snooping report-suppression-interval
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Mode
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Global Configuration
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Defaults
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5
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Example
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SEFOS(config)# ipv6 mld snooping report-suppression-interval 20
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Notes
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This time interval is used when both proxy and proxy-reporting are disabled.
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7.1.7 ipv6 mld snooping retry-count
Sets the maximum number of group specific queries sent on a port on the reception of MLDv1 done message. The no form of the command sets the number of group specific queries sent on a port on the reception of done message to default value.
ipv6 mld snooping retry-count 1-5
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no ipv6 mld snooping retry-count
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Mode
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Global Configuration
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Defaults
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2
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Example
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SEFOS(config)# ipv6 mld snooping retry-count 3
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7.1.8 ipv6 mld snooping group-query-interval
Sets the time interval after which the switch sends a group specific query on a port. The no form of the command sets the group specific query interval time to default value.
ipv6 mld snooping group-query-interval 2-5_seconds
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no ipv6 mld snooping group-query-interval
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Mode
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Global Configuration
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Defaults
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2
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Example
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SEFOS(config)# ipv6 mld snooping group-query-interval 3
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7.1.9 ipv6 mld snooping report-forward
Specifies whether the MLD reports are forwarded on all VLAN member ports or router ports. The no form of the command sets the MLD report-forwarding status to default value.
ipv6 mld snooping report-forward {all-ports | router-ports}
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no ipv6 mld snooping report-forward
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Syntax Description
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all-ports - MLD reports forwarded on all the ports of a VLAN
router-ports - MLD reports forwarded on router ports of a VLAN
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Mode
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Global Configuration
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Defaults
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router-ports
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Example
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SEFOS(config)# ipv6 mld snooping report-forward router-ports
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Notes
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- This configuration is not valid in proxy or proxy-reporting mode.
- In snooping mode, snooping module will forward reports only on router ports by default.
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7.1.10 ipv6 mld snooping version
Sets the operating version of the MLD snooping switch for a specific VLAN.
ipv6 mld snooping version {v1 | v2}
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Syntax Description
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v1 - MLD snooping Version 1
v2 - MLD snooping Version 2
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Mode
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Config-VLAN
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Defaults
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v2
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Example
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SEFOS(config-vlan)# ipv6 mld snooping version v1
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7.1.11 ipv6 mld snooping fast-leave
Enables fast leave processing for a specific VLAN. The no form of the command disables fast leave processing for a specific VLAN.
ipv6 mld snooping fast-leave
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no ipv6 mld snooping fast-leave
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Mode
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Config-VLAN
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Defaults
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Disabled.
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Example
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SEFOS(config-vlan)# ipv6 mld snooping fast-leave
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7.1.12 ipv6 mld snooping querier
Configures the MLD snooping switch as a querier for a specific VLAN. The no form of the command configures the MLD snooping switch as non-querier for a specific VLAN.
ipv6 mld snooping querier
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no ipv6 mld snooping querier
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Mode
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Config-VLAN
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Defaults
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Non-querier
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Example
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SEFOS(config-vlan)# ipv6 mld snooping querier
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7.1.13 ipv6 mld snooping query-interval
Sets the time period with which the general queries are sent by the MLD snooping switch when it is configured as a querier on the VLAN. The no form of the command sets the MLDS querier interval to default value.
ipv6 mld snooping query-interval 60-600_seconds
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no ipv6 mld snooping query-interval
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Mode
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Config-VLAN
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Defaults
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125
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Example
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SEFOS(config-vlan)# ipv6 mld snooping query-interval 65
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Notes
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- In proxy reporting mode, general queries are sent on all downstream interfaces with this interval only if the switch is the Querier.
- In proxy mode, general queries will be sent on all downstream interfaces with this interval.
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7.1.14 ipv6 mld snooping mrouter
Configures statically the router ports for a VLAN. The no form of the command deletes the statically configured router ports for a VLAN.
ipv6 mld snooping mrouter <interface-type> <0/a-b, 0/c, ...
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no ipv6 mld snooping mrouter <interface-type> <0/a-b, 0/c, ...
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Mode
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Config-VLAN
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Example
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SEFOS(config-vlan)# ipv6 mld snooping mrouter extreme-ethernet 0/1-3
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7.1.15 shutdown snooping
Shuts down snooping in the switch. The no form of the command starts and enables snooping in the switch.
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Mode
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Global Configuration
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Defaults
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No shutdown snooping
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Example
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SEFOS(config)# shutdown snooping
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Notes
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- When shutdown, all resources acquired by the snooping module are released to the system
- For the MLDS feature to be functional on the switch, the system-control status must be set as start and the state must be enabled.
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7.1.16 debug ipv6 mld snooping
Specifies the debug levels for MLD snooping module. The no form of the command resets the debug options for MLD snooping module.
debug ipv6 mld snooping {[init] [resources] [tmr] [src] [grp] [qry] [vlan] [pkt] [fwd] [mgmt] | all}
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no debug ipv6 mld snooping {[init] [resources] [tmr] [src] [grp] [qry] [vlan] [pkt] [fwd] [mgmt] | all}
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Syntax Description
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init - Init and shutdown messages.
resources - System resources management messages.
tmr - Timer messages.
src - Source information messages.
grp - Group information messages.
qry - Query related messages.
pkt - Packet dump messages.
fwd - Forwarding database messages.
mgmt - Management related messages.
redundancy - Redundancy related messages. The keyword redundancy is not supported.
all - All messages.
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Mode
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Privileged EXEC
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Defaults
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Debugging is disabled.
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Example
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SEFOS# debug ipv6 mld snooping fwd
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7.1.17 show ipv6 mld snooping mrouter
Displays the router ports for all the VLANs or a specific VLAN.
show ipv6 mld snooping mrouter [Vlan vlan-index] [detail]
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Syntax Description
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Vlan - VLAN index.
detail - Displays detailed information about the router ports.
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Example
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Single Instance
SEFOS# show ipv6 mld snooping mrouter Vlan 1
Vlan Ports
----- ---------
1 Ex0/1(static)
Multiple Instance
SEFOS# show ipv6 mld snooping mrouter
Switch cust1
Vlan Ports
----- ------
2 Ex0/4(static)
Switch cust2
Vlan Ports
----- ------
1 Ex0/10(static)
2 Ex0/9(dynamic)
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7.1.18 show ipv6 mld snooping globals
Displays the global MLD snooping information for all VLANs or a specific VLAN.
show ipv6 mld snooping globals
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Mode
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Privileged EXEC Mode
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Example
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SEFOS# show ipv6 mld snooping globals
Snooping Configuration
-----------------------------
MLD Snooping globally enabled
MLD Snooping is operationally enabled
Transmit Query on Topology Change globally disabled
Multicast forwarding mode is MAC based
Proxy globally disabled
Proxy reporting globally enabled
Filter is disabled
Router port purge interval is 125 seconds
Port purge interval is 260 seconds
Report forward interval is 5 seconds
Group specific query interval is 2 seconds
Reports are forwarded on router ports
Group specific query retry count is 2
Multicast VLAN disabled
Leave config level is Vlan based
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7.1.19 show ipv6 mld snooping
Displays MLD snooping information for all VLANs or a specific VLAN.
show ipv6 mld snooping [Vlan vlan-id]
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Mode
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Privileged EXEC
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Example
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Single Instance
SEFOS# show ipv6 mld snooping Vlan 1
Snooping VLAN Configuration for the VLAN 1
MLD Snooping enabled
MLD configured version is V2
Fast leave is disabled
Snooping switch is configured as Querier
Snooping switch is acting as Non-Querier
Query interval is 125 seconds
Port Purge Interval is 157 seconds
Max Response Code is 10000, Time is 10 seconds
Multiple Instance
SEFOS# show ipv6 mld snooping
Switch default
Snooping VLAN Configuration for the VLAN 1
MLD Snooping enabled
MLD configured version is V2
Fast leave is disabled
Snooping switch is acting as Non-Querier
Query interval is 125 seconds
Port Purge Interval is 260 seconds
Max Response Code is 10000, Time is 10 seconds
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7.1.20 show ipv6 mld snooping groups
Displays the MLDS group information for all VLANs or a specific VLAN or a specific VLAN and group address.
show ipv6 mld snooping groups [Vlan vlan-id [Group address]] string_32]
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Syntax Description
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Vlan - VLAN identifier.
Group - Group address of the VLAN identifier.
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Mode
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Privileged EXEC
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Example
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Single Instance
SEFOS# show ipv6 mld snooping groups
Snooping Group information
-----------------------------
VLAN ID:1 Group Address: ff07::1:1
Filter Mode: EXCLUDE
Exclude sources: None
ASM Receiver Ports: Ex0/1
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Multiple Instance
SEFOS# show ipv6 mld snooping groups
Switch cust1
Snooping Group information
-----------------------------
VLAN ID:2 Group Address: ff02::1:1
Filter Mode: EXCLUDE
Exclude sources: None
Receiver Ports:
Ex0/5
VLAN ID:2 Group Address: ff02::2:2
Filter Mode: EXCLUDE
Exclude sources: None
Receiver Ports:
Ex0/5
Ex0/11
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Switch cust2
Snooping Group information
-----------------------------
VLAN ID:2 Group Address: ff02::1:1
Filter Mode: EXCLUDE
Exclude sources: None
Receiver Ports:
Ex0/10
VLAN ID:2 Group Address: ff02::2:2
Filter Mode: EXCLUDE
Exclude sources: None
Receiver Ports:
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7.1.21 show ipv6 mld snooping forwarding-database
Displays multicast forwarding entries for all VLANs or a specific VLAN.
show ipv6 mld snooping forwarding-database [Vlan vlan-id]
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Mode
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Privileged EXEC
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Example
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Single Instance
/* IP based */
SEFOS# show ipv6 mld snooping forwarding-database
Vlan Source Address Group Address Ports
---- -------------- ------------- -----
1 fe80::7 ff07::1:1 Ex0/1
/* MAC based */
SEFOS# show ipv6 mld snooping forwarding-database
Vlan MAC-Address Ports
---- ----------------- -----
1 33:33:00:01:00:01 Ex0/1
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Multiple Instance
SEFOS# show ipv6 mld snooping forwarding-database
Switch cust1
Vlan MAC-Address Ports
---- ----------------- -----
2 33:33:00:01:00:01 Ex0/5
2 33:33:00:02:00:02 Ex0/5
Switch cust2
Vlan MAC-Address Ports
---- ----------------- -----
2 33:33:00:01:00:01 Ex0/9, Ex0/10
2 33:33:00:02:00:02 Ex0/9, Ex0/11
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7.1.22 show ipv6 mld snooping statistics
Diisplays MLD snooping statistics for all VLANs or a specific VLAN.
show ipv6 mld snooping statistics [Vlan vlan-id]
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Mode
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Privileged EXEC
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Example
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Single Instance
SEFOS# show ipv6 mld snooping statistics
Snooping Statistics for VLAN 1
General queries received : 0
Group specific queries received : 0
Group and source specific queries received : 0
ASM reports received : 1
SSM reports received : 0
IS_INCLUDE messages received : 0
IS_EXCLUDE messages received : 0
TO_INCLUDE messages received : 0
TO_EXCLUDE messages received : 0
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ALLOW messages received : 0
Block messages received : 0
Done messages received : 0
General queries transmitted : 0
Group specific queries transmitted : 0
Group and source specific queries transmitted : 0
ASM reports transmitted : 0
SSM reports transmitted : 0
Done messages transmitted : 0
Unsuccessful joins recieved count Per Vlan : 0
Active/Successful joins recieved count Per Vlan: 0
Active Groups count: 0
Packets dropped : 0
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Multiple Instance
SEFOS# show ipv6 mld snooping statistics
Switch cust1
Snooping Statistics for VLAN 2
General queries received : 0
Group specific queries received : 0
Group and source specific queries received : 0
ASM reports received : 0
SSM reports received : 3
IS_INCLUDE messages received : 0
IS_EXCLUDE messages received : 0
TO_INCLUDE messages received : 0
TO_EXCLUDE messages received : 0
ALLOW messages received : 0
Block messages received : 0
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Done messages received : 0
General queries transmitted : 2
Group specific queries transmitted : 0
ASM reports transmitted : 0
SSM reports transmitted : 0
Done messages transmitted : 0
Packets dropped : 0
Switch cust2
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Snooping Statistics for VLAN 2
General queries received : 2
Group specific queries received : 0
Group and source specific queries received : 0
ASM reports received : 58
SSM reports received : 0
IS_INCLUDE messages received : 0
IS_EXCLUDE messages received : 0
TO_INCLUDE messages received : 0
TO_EXCLUDE messages received : 0
ALLOW messages received : 0
Block messages received : 0
Done messages received : 0
General queries transmitted : 0
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Group specific queries transmitted : 0
ASM reports transmitted : 0
SSM reports transmitted : 3
Done messages transmitted : 0
Packets dropped : 0
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| Sun Ethernet Fabric Operating System CLI Base Reference Manual
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E26513-02
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