для Cisco Cisco Packet Data Gateway (PDG)
Routing
▀ BGP-4 Routing
▄ VPC-VSM System Administration Guide, StarOS Release 19
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BGP PIC is intended to improve network convergence which will safely allow for setting aggressive ICSR failure
detection timers.
detection timers.
configure
context context_name
service-redundancy-protocol
advertise-routes-in-standby-state [ hold-off-time hold-off-time ] [
reset-bfd-nbrs bfd-down-time ]
reset-bfd-nbrs bfd-down-time ]
end
Notes:
hold-off-time hold-off-time delays advertising the BGP routes until the timer expires. Specify hold-off-time in
seconds as an integer from 1 to 300.
After resetting BFD, reset-bfd-nbrs bfd-down-time keeps the BFD sessions down for the configured number of
milliseconds to improve network convergence. Specify bfd-down-time as an integer from 50 to 120000.
Configurable BGP Route Advertisement Interval for ICSR
By default, the MinRtAdvInterval is set for each peer with a value of 5 seconds for an iBGP peer and 30 seconds for an
eBGP peer. An operator can use the neighbor identifier advertisement-interval command to globally change the
default interval.
eBGP peer. An operator can use the neighbor identifier advertisement-interval command to globally change the
default interval.
The BGP advertisement-interval can also be separately set for each address family. If configured, this value over-rides
the peer's default advertisement-interval for that address-family only. BGP will send route update-message for each
AFI/SAFI based on the advertisement-interval configured for that AFI/SAFI. If no AFI/SAFI advertisement-interval is
configured, the peer-based default advertisement-interval is used.
the peer's default advertisement-interval for that address-family only. BGP will send route update-message for each
AFI/SAFI based on the advertisement-interval configured for that AFI/SAFI. If no AFI/SAFI advertisement-interval is
configured, the peer-based default advertisement-interval is used.
In ICSR configurations, this feature can be used to speed route advertisements and improve network convergence times.
The timers bgp icsr-aggr-advertisement-interval command is available in both the BGP Address-Family
(VPNv4/VPNv6) Configuration and BGP Address-Family (VRF) Configuration modes.
(VPNv4/VPNv6) Configuration and BGP Address-Family (VRF) Configuration modes.
configure
context context_name
router bgp as_number
address-family { ipv4 | ipv6 | vpnv4 | vpnv6 }
timers bgp icsr-aggr-advertisement-interval seconds
Notes:
seconds – sets the number of seconds as an integer from 0 to 30. Default: 0.