Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 162)

138 Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide
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Setting up signaled LSPs
1
Configuration considerations
The user can change the tunnel metric configuration at any time. The new value applies only to
tunnels that are brought up after the change. Metrics for existing tunnels do not change.
Configuring an LDP tunnel metric
To set all LDP tunnels to metric 2 (for example), enter the following command under the MPLS LDP
configuration.
Brocade(config-mpls-ldp)# tunnel-metric 2
The new metric is applied only to newly created LDP tunnels
Syntax: [no] tunnel-metric metric-value
The metric-value is a value from 1 through 65535. The default is zero (0).
To revert to the default value, enter the [no] version of this command.
To use the LDP tunnel metric for BGP nexthop resolution, enter the following command at the BGP
configuration mode.
Brocade(config-bgp)# next-hop-mpls compare-lsp-metric
Syntax: next-hop-mpls compare-lsp-metric
Displaying tunnel metric configuration settings
To display tunnel metric configuration settings, enter the show mpls ldp command.
Brocade# show mpls ldp
Label Distribution Protocol version 1
LSR ID: 10.1.1.1, using Loopback 1
(deleting it stops LDP)
Hello interval: Link 5 sec, Targeted 17 sec
Hold time value sent in Hellos: Link 15 sec, Targeted 41 sec
Keepalive interval: 6 sec, Hold time multiple: 6 intervals
Load sharing: 8
Tunnel metric: 10
Syntax: show mpls ldp
Configuring the maximum packet size
This feature allows the user to set a maximum IP packet size for packets that traverse an LSP
without being fragmented. It can be configured for both primary and secondary paths.
To configure a maximum IP packet size for an LSP, enter commands such as the following.
Brocade(config-mpls)# lsp tunnel1
Brocade(config-mpls-lsp)# ipmtu 1500
Syntax: [no] ipmtu packet-size
The packet-size variable specifies the maximum packet size in bytes for IP packets transiting the
LSP without being fragmented.