Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 207)

Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide 183
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Dynamic Bypass LSPs
1
Sample configurations
Global dynamic bypass configuration example
Brocade(config-mpls)# dynamic-bypass
Brocade(config-mpls-dynamic-bypass)# enable
Brocade(config-mpls-dynamic-bypass)# enable-all-interfaces
Brocade(config-mpls-dynamic-bypass)# max-bypasses 150
Brocade(config-mpls-dynamic-bypass)# max-bypasses-per-mp 8
Brocade(config-mpls-dynamic-bypass)# reoptimize-timer 300
Brocade(config-mpls-dynamic-bypass)# disable
Dynamic bypass interface configuration example
Brocade(config-mpls-if-e100-2/3)# dynamic-bypass
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# enable
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# max-bypasses-per-mp 6
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# primary-path “mydbyp-path”
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# traffic-eng mean-rate 1000
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# reoptimize-timer 300
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# priority 3 6
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# hop-limit 4
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# tie-breaking least-fill
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# record
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# cos 4
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# include-any 4 5
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# include-all 1 2
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# exclude-all 3 6
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# from 10.11.11.11
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# no adaptive
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# name-prefix “MyDbyp”
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# reoptimize
Brocade(config-mpls-if-e100-2/3-dynamic-bypass)# disable
Supported scenarios
Scenario A: Dynamic bypass creation to NNHOP
A facility protected LSP triggers the creation of a dynamic bypass LSP. A dynamic bypass LSPs
destination is based on the merge point selection order of FRR backup path. When there is an
existing static or dynamic bypass that satisfies the backup path constraints, it chooses to ride the
backup LSP or it creates new dynamic bypass. A path is calculated by considering NNHOP as the
first destination. When the path computation is successful, the dynamic bypass is signaled. This
creates a node protection dynamic bypass LSP as shown in
Figure 27 below.
FIGURE 27 Automatic creation of dynamic creation and merge point selection