MP-BGP Configuration

MP-BGP Instance ID

1-65535

Specifies the ID of an MP-BGP instance. The EBGP instance ID and MP-BGP instance ID cannot be duplicate on the same NE.

AS Number

1-65535

Sets the AS number. The remote AS number of the peer should be the same as the local AS number.

Router ID

Example: 192.168.0.2

Sets the router ID.

Management Status

Up, Down

Displays the management status.

Operating Status

Up, Down

Displays the operation status.

Association No.

Displays the association number. The confederation is another method of handling too many IBGP connections in an AS. It divides an AS into several sub-ASs. Mesh connections are established between IBGP peers in each sub-AS, and EBGP connections are established between sub-ASs. For BGP speakers outside the confederation, the sub-ASs in the same confederation are integral. The BGP speakers outside the confederation need not know the conditions of the internal sub-AS. The confederation ID is the AS number identifying the entire confederation.

Reflection Cluster ID

Example: 1.1.1.1

Sets the ID of a reflection cluster. When there are multiple router reflectors in the same cluster, you need to configure the same reflection cluster ID for the router reflectors to prevent a routing loop.

Router Priority

1-255

Displays the default priority of a local route. The preference is the preference value of various protocol routes including direct routes and static routes in the IP routing table (management routing table). The smaller the preference value is, the higher the preference is. The route with the smallest preference value has the highest preference.

Compare MED with Different AS No.

Yes, No

Sets whether to compare MEDs with different AS numbers. The multi-exit-discriminator (MED) attribute is exchanged between only two neighboring ASs. The AS that receives this attribute does not advertise it to any other ASs. The MED attribute is equal to the metrics used by IGP. It is used to determine the optimal route when the traffic enters the AS. When a BGP router obtains multiple routes to the same destination address but with different next hops through EBGP peers, a route with the minimum MED value is preferred in the selection of the optimal route in the case that other conditions are the same.

Aggregate Routes

Yes, No

Sets whether to aggregate routes. In a large network, the size of the BGP routing table is large. You can configure route aggregation to reduce the size of the routing table. Route aggregation refers to the process of aggregating multiple routes. BGP routers advertise only the aggregated route rather than all the specific routes to their peers. Routes can be aggregated when MEDs are not equal.

Compare MED to Select Best Route

Yes, No

Sets whether to compare MEDs to select the optimal route.

Check Association Type

Yes, No

Sets whether to strictly verify the confederation type.

Warm Reset

Yes, No

Sets whether warm reset is not supported.

Equivalent Routes

Sets the number of equivalent routes. The number of equivalent routes is the number of load sharing for BGP routes. The load to the same destination IP address can be shared among the equivalent routes.

GR Enable

Enabled, Disabled

Sets whether to enable GR. The GR capacity is a new BGP capacity. The BGP speaker uses the GR capability to express that it supports GR. That is, the forwarding entry is retained in the process of BGP restart. This ensures that the forwarding is not interrupted. The flapping of BGP is limited to the neighbors of the restarting equipment, and does not spread to the entire routing domain.

Time to Tolerance (s)

3-3600

Sets and displays the maximum GR session time. When a GR router detects that the opposite router is down, the topology or route information sent by the opposite router is not deleted within the duration of tolerance time.

Maximum Recovery Time (s)

3-3600

Sets the maximum restoration time of a GR route.

Notify Time (s)

Sets the advertisement time. The advertisement time is the required time during which the local end notifies the peer GR.