Cisco Cisco Packet Data Gateway (PDG)
System Changes in Release 17
▀ System and Platform Enhancements for Release 17.0
▄ Release Change Reference, StarOS Release 17
632
Feature Changes
Configurable BGP Route Advertisement Interval for ICSR
Previous Behavior: By default, the MinRtAdvInterval was 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.
and 30 seconds for an eBGP peer. An operator can use the neighbor identifier advertisement-interval command to
globally change the default interval.
New Behavior: The BGP advertisement-interval can now 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.
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.
Customer Impact: In ICSR configurations, this feature can be used to speed route advertisements and improve network
convergence times.
convergence times.
Command Changes
timers bgp icsr-aggr-advertisement-interval
This new command is available in both the BGP Address-Family (VPNv4/VPNv6) Configuration and BGP Address-
Family (VRF) Configuration modes
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.
CSCum87764 - Announcing Routes from Standby Chassis
Applicable Products: All products supporting ICSR
Related CDETS ID: CSCuj54862
Feature Changes
Announcing BGP Routes from a Standby ICSR Chassis
A new SRP Configuration mode command enables advertising BGP routes from an ICSR chassis in standby state. This
command and its keywords allow an operator to take advantage of faster network convergence accrued from deploying
BGP Prefix Independent Convergence (PIC) in the Optical Transport Network Generation Next (OTNGN).
command and its keywords allow an operator to take advantage of faster network convergence accrued from deploying
BGP Prefix Independent Convergence (PIC) in the Optical Transport Network Generation Next (OTNGN).
BGP PIC is intended to improve network convergence which will safely allow for setting aggressive ICSR failure
detection timers.
detection timers.