display bgp vpnv6 peer verbose

Function

The display bgp vpnv6 peer verbose command displays detailed information about BGP VPNv6 peers.

Format

display bgp vpnv6 vpn-instance vpn-instance-name peer verbose

display bgp vpnv6 vpn-instance vpn-instance-name peer ipv6-address verbose

display bgp vpnv6 vpn-instance vpn-instance-name peer ipv4-address verbose

Parameters

Parameter Description Value
vpn-instance vpn-instance-name

Specifies a VPN instance name.

The value is a string of 1 to 31 case-sensitive characters, spaces not supported. In addition, the VPN instance name must not be _public_. When double quotation marks are used around the string, spaces are allowed in the string.

ipv6-address

Specifies an IPv6 peer address.

The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X.

ipv4-address

Specifies an IPv4 peer address.

The value is in dotted decimal notation.

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name Operations
bgp read

Usage Guidelines

Usage Scenario

The display bgp vpnv6 peer verbose command displays detailed information about BGP VPNv6 peers.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display detailed information about BGP VPNv6 peers.
<HUAWEI> display bgp vpnv6 vpn-instance vrf1 peer 2001:DB8:12::2 verbose

         BGP Peer is 2001:DB8:12::2,  remote AS 200
         Type: EBGP link
         BGP version 4, Remote router ID 10.1.1.2
         Update-group ID: 6
         BGP current state: Established, Up for 00h05m02s
         BGP current event: RecvKeepalive
         BGP last state: OpenConfirm
         BGP Peer Up count: 1
         Received total routes: 0
         Received active routes total: 0
         Advertised total routes: 0
         Port: Local - 179        Remote - 54463
         Configured: Connect-retry Time: 32 sec
         Configured: Min Hold Time: 0 sec
         Configured: Active Hold Time: 180 sec   Keepalive Time:60 sec
         Received  : Active Hold Time: 180 sec
         Negotiated: Active Hold Time: 180 sec   Keepalive Time:60 sec
         Peer optional capabilities:
         Peer supports bgp multi-protocol extension
         Peer supports bgp route refresh capability
         Peer supports bgp 4-byte-as capability
         Address family IPv6 Unicast: advertised and received
 Received: Total 8 messages
                  Update messages                1
                  Open messages                  1
                  KeepAlive messages             6
                  Notification messages          0
                  Refresh messages               0
 Sent: Total 10 messages
                  Update messages                1
                  Open messages                  3
                  KeepAlive messages             6
                  Notification messages          0
                  Refresh messages               0
 Authentication type configured: None
 Last keepalive received: 2020-01-28 17:24:31+00:00
 Last keepalive sent    : 2020-01-28 17:24:12+00:00
 Last update    received: 2020-01-28 17:20:03+00:00
 Last update    sent    : 2020-01-28 17:20:03+00:00
 No refresh received since peer has been configured
 No refresh sent since peer has been configured
 Minimum route advertisement interval is 30 seconds
 Optional capabilities:
 Route refresh capability has been enabled
 4-byte-as capability has been enabled
 Peer Preferred Value: 0
 Memory Priority: high
 Routing policy configured:
 No routing policy is configured
Table 1 Description of the display bgp vpnv6 peer verbose command output
Item Description
BGP version

BGP version.

BGP current state

State of BGP:

  • Idle: indicates that BGP denies any request of entering. This is the initiatory status of BGP.

Upon receiving a Start event, BGP initiates a TCP connection request to the remote BGP peer, starts the ConnectRetry Timer with the initial value, listens for a TCP connection initiated by the remote BGP peer, and changes its state to Connect.

  • Connect: indicates that BGP is waiting for the TCP connection to be set up before it determines whether to perform other operations.
  • If the TCP connection succeeds, BGP stops the ConnectRetry Timer, sends an Open message to the remote peer, and changes its state to OpenSent.
  • If the TCP connection fails, BGP restarts the ConnectRetry Timer with the initial value, continues to listen for a TCP connection request initiated by the remote peer, and changes its state to Active.
  • If the ConnectRetry Timer has expired before a TCP connection is established, BGP restarts the timer with the initial value, initiates a TCP connection request to the remote BGP peer, and stays in the Connect state.
  • Active: indicates that BGP tries to set up a TCP connection. This is the intermediate status of BGP.
  • If the TCP connection succeeds, BGP stops the ConnectRetry Timer, sends an Open message to the remote peer, and changes its state to OpenSent.
  • If the ConnectRetry Timer has expired before a TCP connection is established, BGP restarts the timer with the initial value and changes its state to Connect.
  • If BGP initiates a TCP connection request with an unknown IP address, the TCP connection fails. When this occurs, BGP restarts the ConnectRetry Timer with the initial value and stays in the Active state.
  • OpenSent: indicates that BGP has sent one Open message to its peer and is waiting for the other Open message from the peer.
  • If there are no errors in the Open message received, BGP changes its state to OpenConfirm.
  • If there are errors in the Open message received, BGP sends a Notification message to the remote peer and changes its state to Idle.
  • If the TCP connection fails, BGP restarts the ConnectRetry Timer with the initial value, continues to listen for a TCP connection request initiated by the remote peer, and changes its state to Active.
  • OpenConfirm: indicates that BGP is waiting for a Notification or Keepalive message.
  • If BGP receives a Notification message, or the TCP connection fails, BGP changes its state to Idle.
  • If BGP receives a Keepalive message, BGP changes its state to Established.
  • Established: indicates that BGP peers can exchange Update, Notification, and Keepalive messages.
  • If BGP receives an Update or a Keepalive message, its state stays in Established.
  • If BGP receives a Notification message, BGP changes its state to Idle.
  • No neg: The address family is not enabled for the BGP peer. In this state, Update messages can be exchanged in other address families whose capabilities have been successfully negotiated. If the address family is enabled for the BGP peer, the local BGP peer receives a Notification message, and the peer relationship is disconnected. Then, the BGP peer changes to the Idle state and re-establishes the peer relationship.
BGP current event

Current BGP event.

BGP last state

Last BGP status, which may be Idle, Connect, Active, OpenSent, OpenConfirm, Established or No neg.

BGP Peer Up count

Flapping count of a BGP peer in a specified period of time.

BGP Peer is

IP address of a BGP peer.

Peer Preferred Value

Preferred value of the peer.

Peer optional capabilities

Optional capabilities of the peer.

Remote router ID

Router ID of the peer.

Update-group ID

ID of the update-group to which the peer belongs.

Received total routes

Number of received route prefixes.

Received active routes total

Number of received active route prefixes.

Received

Number of packets received from the peer:

  • Total: total number of records.
  • Update messages: indicates the number of Update messages.
  • Open messages: indicates the number of Open messages.
  • KeepAlive messages: indicates the number of Keepalive messages.
  • Notification messages: indicates the number of Notification messages.
  • Refresh messages: indicates the number of Route-refresh messages.
Advertised total routes

Number of sent route prefixes.

Keepalive Time

Indicates the interval at which Keepalive messages are sent to the peer.

4-byte-as capability has been enabled

The 4-byte AS capability has been enabled.

Address family IPv6 Unicast

IPv6 unicast address family.

Notification

Notification message sent or received by a peer.

Authentication type configured

Authentication type that is configured.

Last keepalive received

Time when a Keepalive message was last received.

Last keepalive sent

Time when a Keepalive message was last sent.

Last update received

Time when an Update message was last received.

Last update sent

Time when an Update message was last sent.

No refresh received since peer has been configured

No Route-Refresh messages have been received from the peer since the peer relationship was established.

No refresh sent since peer has been configured

No Route-Refresh messages have been sent to the peer since the peer relationship was established.

Minimum route advertisement interval is 30 seconds

Minimum route advertisement interval.

Optional capabilities

Capabilities supported by the peer (optional).

Route refresh capability has been enabled

Route-refresh enabled.

Memory Priority

The priority for a BGP peer relationship to be disconnected if memory overload occurs.

Routing policy configured

Whether a route-policy has been configured.

Type

BGP link type: IBGP or EBGP.

Port

Port type:

  • Local: indicates the local port number, which is always 179. BGP uses TCP at the transport layer.
  • Remote: indicates the port number used on the peer.
Configured

Locally configured timers:

  • Active Hold Time: If BGP does not receive any Keepalive message from a peer within the Hold Time, BGP considers that the peer is Down. In this case, BGP instructs other peers to withdraw the routes received from the peer that is Down.
  • Keep Alive Time: indicates the interval for sending Keepalive messages to the peer. BGP peers send Keepalive messages to each other periodically to advertise their working status.
Sent

Number of messages sent to peers:

  • Total: total number of records.
  • Update messages: indicates the number of Update messages.
  • Open messages: indicates the number of Open messages.
  • KeepAlive messages: indicates the number of Keepalive messages.
  • Notification messages: indicates the number of Notification messages.
  • Refresh messages: indicates the number of Route-refresh messages.
Negotiated

The value of negotiated timer.

Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd.
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