AIS AI2524 Determine TIDs and NSAPs, Tarp route-static nsap, Tarp blacklist-adjacency nsap

AI2524 Router Card User’s Manual

that may not have TARP running, TARP provides a static TARP adja- cency capability. Static adjacencies are maintained in a special queue.

In global configuration mode, create a static TARP adjacency:

tarp route-static nsap

To stop TARP from propagating PDUs to an IS-IS/ES-IS adjacency that may not have TARP running, TARP provides a blacklist adja- cency capability. The router will not propagate TARP PDUs to black- listed routers.

In global configuration mode, bypass a router not running TARP.

tarp blacklist-adjacency nsap

Determine TIDs and NSAPs

In EXEC mode, determine an NSAP address for a TID or a TID for an

NSAP address:

1.Get the TID associated with a specific NSAP. tarp query nsap

2.Get the NSAP associated with a specific TID. tarp resolve tid [1 2]

To determine the TID, the router first checks the local TID cache. I there is a TID entry in the local TID cache, the requested information is displayed. If there is no TID entry in the local TID cache, a TARP Type 5 PDU is sent out to the specified NSAP address.

To determine the NSAP address, the router first checks the local TID cache. If there is an NSAP entry in the local TID cache, the requested information is displayed. If there is no NSAP entry in the local TID cache, a TARP Type 1 or Type 2 PDU is sent out. By default, a Typ

1 PDU is sent to all Lev el1 (IS-IS and ES-IS) neighbors. If a response is received, the requested information is displayed. If a response is not received within the response time, a Type 2 PDU is sent to all L evel1 and Leve l2 neighbors. Specifying the EXEC command tarp re- solve tid 2 causes only a Type 2 PDU to be sent.

You can configure the length of time that the router will wait for a re- sponse (in the form of a Type 3 PDU).

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