# 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

#### Related Topics

- show bgp ipv6 summary
- show ip bgp summary