Open Shortest Path First (v2): an interior routing protocol NSX Tier-0 gateways may run in place of BGP to exchange routes with the physical network.
Also called Open Shortest Path First.
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In the Ultra Transcenders books
Each book explains OSPF in context, with comparison tables and the common traps.
Terms in this definition
- Geographic
A Traffic Manager routing method that picks the endpoint according to where the user is located geographically.
- NSX
Software that handles networking and security across VCF, covering firewalling, load balancing, NAT, VPCs, overlay segments and Tier-0/1 gateways.
- BGP
Dynamic routing protocol used with both ExpressRoute and VPN connections. On ExpressRoute private peering it is the only way to exchange routes, including a 0.0.0.0/0 default route for forced tunnelling.
- Physical
Describes the concrete, real-world parts that put a logical architecture into effect.
Related terms
- Forwarding Up Timer
Formerly called forwarding delay, this Tier-0 gateway setting defaults to 5 seconds. After the first BGP, BFD or OSPF session comes up, it waits before announcing the up state, which reduces failover downtime.
- IGP
Interior gateway protocol, for example OSPF, that spreads routes within one routing domain. A Tier-0 BGP neighbour outside the directly connected uplink subnet calls for multi-hop (Max Hop Limit) as well as an IGP.