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Monitoring the Status of All BGP Neighbors
Purpose
Display summarized status of all BGP neighbors.
The show ip bgp summary and show bgp ipv6 summary commands display similar information.
Action
To display summarized status of all BGP neighbors:
host1#show bgp ipv6 summary
Local router ID 10.13.13.13, local AS 400
Administrative state is Start
BGP Operational state is Up
Shutdown in overload state is disabled
Default local preference is 100
IGP synchronization is disabled
Default originate is disabled
Always compare MED is disabled
Compare MED within confederation is disabled
Advertise inactive routes is disabled
Advertise best external route to internal peers is disabled
Enforce first AS is disabled
Missing MED as worst is disabled
Route flap dampening is disabled
Maximum number of equal-cost EBGP paths is 2
Maximum number of equal-cost IBGP paths is 2
Log neighbor changes is disabled
Fast External Fallover is disabled
No maximum received AS-path length
BGP administrative distances are 20 (ext), 200 (int), and 200 (local)
Client-to-client reflection is enabled
Cluster ID is 10.13.13.13
Route-target filter is enabled
Default IPv4-unicast is enabled
Redistribution of iBGP routes is disabled
Graceful restart is globally disabled
Global graceful-restart restart time is 120 seconds
Global graceful-restart stale paths time is 360 seconds
Graceful-restart path selection defer time is 360 seconds
This platform supports only the receiver role of graceful restart
Route Distinguisher: 100:11
Import route map: test2-import-map
Export route map: test1-export-map (can not filter routes)
Global import route map: test3-global-import-map
103 routes imported from global table (max 5000 routes allowed)
Global export route map: test4-global-export-map
Local-RIB version 7. FIB version 7.
Messages Messages Prefixes
Neighbor AS State Up/down time Sent Received Received
11.11.11.11 400 Established 00:36:19 78 81 2
12.12.12.12 400 Established 00:36:21 78 78 1
103.103.103.3 300 Established 00:36:34 85 80 2 To display the status of next hop reachability checking by specifying vpnv4:
host1#show ip bgp vpnv4 all summary Local router ID 10.13.5.19, local AS 100 Administrative state is Start BGP Operational state is Up ... Default IPv4-unicast is enabled Redistribution of iBGP routes is disabled Check reachability of next-hops for VPN routes is enabled ...
To display the status of fields related to enabling local AS numbers to be received in routes:
host1#show ip bgp summary fields remote-as state rib-version
send-queue-length more-in-queue
Send More
Neighbor AS State RIB Ver Q InQ
2.2.2.2 100 Established 2 0 no Meaning
Table 47 lists the show bgp ipv6 summary command output fields.
Table 47: show bgp ipv6 summary Output Fields
Field Name | Field Description |
|---|---|
Local router ID | Router ID of the local router |
local AS | Local autonomous system number |
Administrative state | BGP administrative state, start or stop |
BGP Operational state | Operational state, up, down, or overload |
Shutdown in overload state | Status, enabled or disabled |
Default local preference | Default value for local preference |
IGP synchronization | Synchronization status, enabled or disabled |
Default originate | Whether network 0.0.0.0 is redistributed into BGP (enabled) or not (disabled) |
Auto-summary | Status of auto summarization of routes redistributed into BGP |
Always compare MED | Status, enabled or disabled |
Compare MED within confederation | Status, enabled or disabled |
Advertise inactive routes | Status, enabled or disabled |
Advertise best external route to internal peer | Status, enabled or disabled |
Enforce first AS | Status, enabled or disabled |
Missing MED as worst | Status, enabled or disabled |
Route flap dampening | Status, enabled or disabled |
Maximum number of equal-cost EBGP paths | Number of paths |
Maximum number of equal-cost IBGP paths | Number of paths |
Log neighbor changes | Status, enabled or disabled |
Fast External Fallover | Status, enabled or disabled |
No maximum received AS-path length | Indicates whether limit is set for AS path length and, if set, the limit |
BGP administrative distances | Distances for external, internal, and local BGP routes |
Router is a route reflector | Indicates whether the router has been configured as a route reflector |
Client-to-client reflection | Whether client-to-client reflection is configured (enabled) or not (disabled) |
Cluster ID | Identifying number for cluster ID |
Route-target filter | Status, enabled or disabled |
Default IPv4-unicast | Status, enabled or disabled |
Redistribution of iBGP routes | Status, enabled or disabled |
Check reachability of next-hops for VPN routes | Status, enabled or disabled |
Graceful restart | Status, enabled or disabled |
Global graceful-restart restart time | Time in seconds |
Global graceful-restart stale paths time | Time in seconds |
Graceful-restart path selection defer time | Time in seconds |
Route Distinguisher | RD assigned to the VRF |
Confederation ID | Confederation ID |
Confederation peers | Confederation peers |
Import route map | Route map associated with the VRF that filters and modifies routes imported to the VRF from the global BGP VPN RIB. The map applies to both IPv4 and IPv6 routes, unless the field name is preceded by IPv4 (applies the map to only IPv4 routes) or IPv6 (applies the map to only IPv6 routes). |
Export route map | Route map associated with the VRF that modifies and filters routes exported by the VRF to the global BGP VPN RIB. The map applies to both IPv4 and IPv6 routes, unless the field name is preceded by IPv4 (applies the map to only IPv4 routes) or IPv6 (applies the map to only IPv6 routes). The can filter routes text appears only if the filter keyword was issued for export map. |
Global import route map | Route map associated with the VRF that modifies routes imported to the VRF from the global BGP non-VPN RIB. The map applies to both IPv4 and IPv6 routes, unless the field name is preceded by IPv4 (applies the map to only IPv4 routes) or IPv6 (applies the map to only IPv6 routes). |
routes imported from global table | Number of routes imported from the global BGP non-VPN RIB; also lists the maximum number of routes that can be imported |
Global export route map | Route map associated with the VRF that modifies routes exported by the VRF to the global BGP non-VPN RIB. The map applies to both IPv4 and IPv6 routes, unless the field name is preceded by IPv4 (applies the map to only IPv4 routes) or IPv6 (applies the map to only IPv6 routes). |
Local-RIB version | Number that is increased by one each time a route in that RIB is added, removed or modified. |
FIB version | Number that is increased by one each time BGP updates the routes in the IP routing table based on changes in the local RIB. The FIB version matches the local-RIB version when BGP has finished updating the routes in the IP route table. The FIB version is less than the local-RIB version when BGP is still in the process of updating the IP routing table. |
Neighbor | BGP neighbors |
AS | AS number of the peer |
Ver | Negotiated BGP version number |
State | State of the connection |
Up/down time | Time the connection has been up or down |
Messages sent | Number of messages sent to peer |
Messages received | Number of messages received from peer |
Prefixes received | Number of prefixes received from peer |
Rib Ver | Last RIB version queued to be sent to peer |
Send Q | Number of messages queued to be sent to peer |
More InQ | Status indicating whether any messages are waiting to be sent to peer |
