Technical data

Brocade MLX Series and NetIron Family Documentation Updates 37
53-1002805-03
Bypass LSP Liberal Path Selection
1
Syntax: [no] cspf-computation-mode [ use-bypass-liberal | use-bypass-metric]
By default, backup query uses full restrictions to qualify bypass LSP during backup query.
This command can be executed at any time. The bypass LSP selection process will use the
restricted or liberal mode depending upon the current configuration. Changing the computation
mode will not impact the already selected bypass LSPs.
Show command enhancements
The configuration which enables liberal mode will be displayed as part of the following commands.
Note that by default, this option is disabled and not shown. This is different from the command of
cspf-computation-mode use-bypass-metric, which will show disabled when not enabled.
Show mpls config
Brocade(config-mpls-policy)#show mpls config
router mpls
policy
cspf-computation-mode use-bypass-metric
cspf-computation-mode use-bypass-liberal
Show mpls policy
Brocade(config-mpls-policy)#show mpls policy
Current MPLS policy settings:
CSPF interface constraint: enabled
CSPF-Group computation-mode: disabled
CSPF computation-mode: Use bypass metric
CSPF computation-mode: Use bypass liberal
TTL propagation for MPLS label: disabled, IPVPN: disabled, IP over MPLS: enabled
Inter-AS route filtering: enabled, Intra-AS iBGP route filtering: disabled
Ingress tunnel accounting: enabled
Polling interval for MPLS LSP traffic statistics: 300 seconds
Advertise TE parameters via: ISIS level-2
Handle neighbor down event - ISIS: Yes OSPF: No
LSP rapid retry: disabled, maximum number of retries: no limit
LSP periodic retry time: 30 seconds
FRR backup/detour retry time: 30 seconds
Admin group:
blue, group number: 1
yellow, group number: 2
red, group number: 6
green, group number: 8
Show mpls lsp
Brocade# show mpls lsp frr_lsp
LSP frr_lsp, to 7.7.7.2
From: 7.7.7.1, admin: UP, status: UP, tunnel interface(primary path): tnl0
Times primary LSP goes up since enabled: 1
Metric: 0, Adaptive
…
Recorded routes:
Protection codes: P: Local N: Node B: Bandwidth I: InUse
7.1.1.0 (P) -> 7.1.13.1