Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 354)

330 Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide
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LDP ECMP for transit LSR
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the set of programmed paths. MPLS always sends the complete set of ECMP paths to the
forwarding plane. When the user changes the load sharing configuration, updates are also sent to
the forwarding plane. FEC updates are only generated when the new load sharing value is different
from the set of ECMP paths programmed in the forwarding plane.
NOTE
LDP ECMP is not supported at the ingress router.
The ingress LDP LSP can be different from the transit LSP for the same FEC. When all ECMP paths
provided by the RTM are using LDP tunneling enabled for RSVP shortcut LSP(s), then the ingress
LDP tunnel is not created.
NOTE
MP switchover event may not be handled properly by MPLS/RSVP module. This may result in
inconsistent state for RSVP LSPs/Sessions. This could be fixed by adding support for RSVP Hello
feature.
Changing the maximum number of LDP ECMP paths
To change the maximum number of LDP ECMP paths, enter the following commands under the
router MPLS mode.
Brocade(config-mpls)# ldp
Brocade(config-mpls-ldp)# load-sharing 4
Syntax: load-sharing num
The num variable specifies the maximum number of LDP ECMP paths. Enter a number from one to
eight. The default value is 1. To return to the default maximum number of LDP ECMP paths, use the
[no] form of the command.
The load sharing configuration is displayed in the output of the show mpls ldp command.
NOTE
The configuration for load sharing is displayed only when the configured value is different from the
default value.
Brocade# show mpls ldp
Label Distribution Protocol version 1
LSR ID: 10.125.125.1, using Loopback 1
(deleting it stops LDP)
Hello interval: Link 5 sec, Targeted 15 sec
Hold time value sent in Hellos: Link 15 sec, Targeted 45 sec
Keepalive interval: 6 sec, Hold time multiple: 6 intervals
load-sharing 4
Syntax: show mpls ldp
The load sharing configuration can also be displayed in the output of the show mpls config
command, as shown in the following example.