Configure RSMLT on a VLAN
Configure RSMLT on a VLAN to exchange Layer 3 information between peer nodes in a switch cluster. This configuration applies to both IPv4 and IPv6.
Before you begin
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An IP routing protocol is enabled on VLAN Layer 3 interfaces.
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VLANs with Layer 3 interfaces participate in Split MultiLink Trunking (SMLT).
About this task
The VLAN can be either IPv4 or IPv6, or both. RSMLT configuration on a VLAN simultaneously affects both IPv4 and IPv6. By default, RSMLT is disabled on a VLAN.
Procedure
Example
Configure and enable RSMLT on a VLAN:
Switch:1>enable Switch:1#configure terminal Switch:1(config)#interface vlan 100 Switch:1(config-if)#ip rsmlt holddown-timer 100 Switch:1(config-if)#ip rsmlt holdup-timer 200 Switch:1(config-if)#ip rsmlt
Variable Definitions
The following table defines parameters for the ip rsmlt command.
Variable |
Value |
---|---|
holddown-timer <0-3600> |
Defines how long the recovering or restarting system remains in a non-Layer 3 forwarding mode for the peer router MAC address. The default is 60. Configure this value to be longer than the anticipated routing protocol convergence. If you disable RSMLT on a VLAN, non default values for this variable do not save across restarts. |
holdup-timer <0-3600|9999> |
Defines how long the RSMLT system maintains forwarding for its peer. The value is a range from 0 to 3600 seconds or 9999. 9999 means infinity. The default is 1800. If you disable RSMLT on a VLAN, non default values for this variable do not save across restarts. |
The following table defines parameters for the interface command.
Variable |
Value |
---|---|
<1-4059> |
Specifies the VLAN ID in the range of 1 to 4059. By default, VLAN IDs 1 to 4059 are configurable and the system reserves VLAN IDs 4060 to 4094 for internal use. On switches that support the vrf-scaling and spbm-config-mode boot configuration flags, if you enable these flags, the system also reserves VLAN IDs 3500 to 3998. VLAN ID 1 is the default VLAN and you cannot create or delete VLAN ID 1. |