show isis adjacency

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show isis adjacency
Syntax
show isis adjacency 
<brief | detail | extensive> 
<instance instance-name>
<logical router (all | logical-router-name)>
Description

Display information about Intermediate System-to-Intermediate System (IS-IS) neighbors.

Options

none—Display standard information about IS-IS neighbors for all routing instances on all logical routers.

brief | detail | extensive—(Optional) Display the specified level of output.

instance instance-name—(Optional) Display adjacencies for the specified routing instance.

logical-router (all | logical-router-name)—(Optional) Perform this operation on all logical routers or on a particular logical router.

Required Privilege Level

view

See Also

clear isis adjacency

List of Sample Output

show isis adjacency briefshow isis adjacency detail
show isis adjacency extensive

Output Fields

Interface—Interface through which the neighbor is reachable.

System—(Brief output only) System identifier (sysid), displayed as a name, if possible.

L or Level—Level:

1—Level 1 only

2—Level 2 only

3—Level 1 and Level 2

An exclamation point (!) preceding the level number indicates that the adjacency is missing an IP address.

State—State of the adjacency: Up, Down, New, One-way, Initializing, or Rejected.

Hold (secs)—(Brief output only) Remaining hold time of the adjacency.

SNPA—(Brief output only) Subnetwork point of attachment (MAC address of the next hop).

Expires in—(Detail output only) How long until the adjacency expires, in seconds.

Priority—(Detail and extensive output only) Priority to become the designated intermediate system.

Up/Down transitions—(Detail output only) Count of adjacency status changes from Up to Down or from Down to Up.

Last transition—(Detail output only) Time of the last Up/Down transition.

Circuit type—(Detail output only) Bit mask of levels on this interface: L1=Level 1 router; L2=Level 2 router; L1/L2=both Level 1 and Level 2 router.

Speaks—(Detail and extensive output only) Protocols supported by this neighbor.

Topologies—(Detail and extensive output only) Supported topologies.

Restart capable—(Detail and extensive output only) Whether a neighbor is capable of graceful restart: Yes or No.

IP addresses—(Detail and extensive output only) IP address of this neighbor.

Transition log—(Extensive output only) List of recent transitions, including When, State, Event, and Down Reason.

show isis adjacency brief
user@host> show isis adjacency brief 
IS-IS adjacency database:
Interface  System         L State        Hold (secs) SNPA
so-1/0/0.0 1921.6800.5067 2 Up                    13
so-1/1/0.0 1921.6800.5067 2 Up                    25
so-1/2/0.0 1921.6800.5067 2 Up                    20
so-1/3/0.0 1921.6800.5067 2 Up                    19
so-2/0/0.0 1921.6800.5066 2 Up                    19
so-2/1/0.0 1921.6800.5066 2 Up                    17
so-2/2/0.0 1921.6800.5066 2 Up                    20
so-2/3/0.0 1921.6800.5066 2 Up                    20
so-5/0/0.0 ranier         2 Up                    17
show isis adjacency detail
user@host> show isis adjacency detail   
toothache
  Interface: fe-0/0/1.0, Level: 1, State: Up, Expires in 26 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 00:19:34 ago
  Circuit type: 3, Speaks: IP, CLNS, MAC address: 0:12:0:34:0:56
  Topologies: Unicast
  Restart capable: Yes
  LAN id: pro1-a.02, IP addresses: 192.168.37.69
toothache
  Interface: fe-0/0/1.0, Level: 2, State: Up, Expires in 26 secs
  Priority: 64, Up/Down transitions: 1, Last transition: 00:26:11 ago
  Circuit type: 3, Speaks: IP, CLNS, MAC address: 0:12:0:34:0:56
  Topologies: Unicast
  Restart capable: Yes
  LAN id: pro1-a.02, IP addresses: 192.168.37.69
show isis adjacency extensive
user@host> show isis adjacency extensive 
  isis2
    Interface: sr1.0, Level: 3, State: Up, Expires in 25 secs
    Priority: 0, Up/Down transitions: 16, Last transition: 00:00:01 ago
    Circuit type: 3, Speaks: IP
    Restart capability: Yes
    IP addresses: 123.456.36.18
    Transition log:
    When                  State        Event            Down Reason
    Fri Jun 29 17:32:26   Up           Seenself
    Fri Jun 29 17:32:42   Down         Interface Down   3-Way Handshake Failed
    Fri Jun 29 17:32:52   Up           Seenself
    Fri Jun 29 17:33:19   Down         Level Mismatch   3-Way Handshake Failed
    Fri Jun 29 17:33:25   Up           Seenself
    Fri Jun 29 17:33:43   Down         Level Mismatch
    Fri Jun 29 17:33:49   Up           Seenself
    Fri Jun 29 17:35:40   Rejected     Error
    Fri Jun 29 17:36:12   Up           Seenself
    Fri Jun 29 17:36:47   Down         Interface Down   3-Way Handshake Failed
    Fri Jun 29 17:36:59   Up           Seenself

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