Cisco Cisco Packet Data Gateway (PDG)

StarOS Tasks

▀ Subsystem Tasks

▄ ASR 5000 System Administration Guide, StarOS Release 18

400

Task

Description

Function

bgp

Border Gateway
Protocol

Created by the VPN Manager for each context that has enabled the BGP routing protocol
(router bgp Context Configuration mode CLI command).

Responsible for learning and redistributing routing information via the BGP protocol.

Maintains the BGP peering connections.

Applies any defined BGP routing policy.

ospf

Open Shortest Path
First

Created by VPN Manager for each context that has enabled the OSPF routing protocol
(router ospf Context Configuration mode CLI command).

Responsible for learning and redistributing routing information via the OSPF protocol.

Maintains the OSPF neighboring relationship.

Maintains the LSA database.

Performs SPF calculations.

Applies any defined OSPF routing policy

ospfv3

Open Shortest Path
First

Created by VPN Manager for each context that has enabled the OSPFv3 routing protocol
(router ospfv3 Context Configuration mode CLI command)

Responsible for learning and redistributing routing information via the OSPFv3 protocol.

Maintains the OSPFv3 neighboring relationship.

Maintains the LSA database.

Performs OSPFv3 SPF calculations.

Applies any defined OSPFv3 routing policy.

rip

Routing
Information
Protocol

Created by VPN Manager for each context that has enabled the RIP routing protocol (router
rip Context Configuration mode CLI command)

Responsible for learning and redistributing routing information via the RIP protocol.

Maintains the RIP database.

Sends periodic RIP update messages.

Applies any defined RIP routing policy.

zebos

L2 and L3
Switching

Created by VPN Manager for each context.

Maintains the routing table (RIB and FIB) for the context.

Performs static routing.

Interfaces to the kernel for routing & interface updates.

Redistributes routing information to dynamic routing protocols.

Calculates nexthop reachability.