Monitoring LLC

I-frames refused by LLC user

Counter that displays the number of I-frames discarded by the software above the LLC. For example, DLSw (Data Link Switching).

Cumulative number of sessions

The total number of sessions that were opened over this SAP.

Number of active sessions

The total number of currently active sessions that are running over the interface.

Session ID (int-sap-id)

The session ID for the monitoring interface.

Local MAC

The router's LLC MAC address.

Remote MAC

The remote LLC's MAC address.

Remote SAP

The remote SAP of the LLC connection.

Remote State

The ®nite state(s) that results from interaction between the LLC peers. There are 21 states that are described below.

Link_Closed

The remote LLC peer is not known to the local LLC peer and is considered as not existing.

Disconnected

The local LLC peer is known to the other peer. This LLC peer can send and receive XID, TEST, SABME, and DISC commands; and XID TEST, UA, and DM responses.

Link_Opening

The state of the local LLC peer after sending a SABME or UA in response to a received SABME.

Disconnecting

The state of the local LLC after sending a DISC command to the remote LLC peer.

FRMR_Sent

The local LLC peer has entered the frame reject exception state and has sent a FRMR response across the link.

Link_Opened

The local LLC peer is in the data transfer phase.

Local_Busy

The local LLC peer is unable to receive additional I-frames.

Rejection

A local LLC peer that has received one or more out-of-sequence I-frames.

Checkpointing

The local LLC peer has sent a poll to the remote LLC peer and is waiting for an appropriate response.

CKPT_LB

A combination of checkpointing and local busy states.

Chapter 17. Con®guring and Monitoring LLC Interfaces 241

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IBM SC30-3681-08 Frames refused by LLC user, Cumulative number of sessions, Number of active sessions, Local MAC, FRMRSent