Cabletron Systems CSX1000, CSX1200 manual PPP Configuration Elements

USER’S GUIDE

PPPCONFIGURATION ELEMENTS

MAX TERMINATE

The number of Terminate-Request packets sent without receiving a Terminate-Ack before assuming that the peer is unable to respond.

MAX CONFIGURE

The number of Configure-Request packets sent without receiving a valid Configure-Ack, Configure-Nak or Configure-Reject before assuming that the peer is unable to respond.

MAX FAILURE

The number of Configure-Nak packets sent without sending a Configure-Ack before assuming that configuration is not converging. Any additional Configure-Nak packets are converted to Configure-Reject packets.

RESTART TIMER

Times transmissions of Configure-Request and Terminate-Request packets. Expiration of the Restart timer causes a Timeout event, and retransmission of the corresponding Configure-Request or Terminate-Request packet.

LCP PROTOCOL FIELD COMPRESSION (PFC)

Provides a way to negotiate the compression of the Data Link Layer Protocol field.

LCP ADDRESS CONTROL FIELD COMPRESSION (ACFC)

Provides a way to negotiate the compression of the data link layer address and control fields.

RECEIVE SETTINGS

The receive settings for PFC and ACFC control whether (and how) the system receives PPP Packets with PFC or ACFC. Receive setting options include:

•mandatory: requested, repeated indefinitely if NAK'd

•preferable: requested, repeated up to MaxAttempts times if NAK'd

•supported: not requested, a peer request will be ACK'd

•not supported: not requested, NAK'd if the peer requests it

SEND SETTINGS

The send settings for PFC and ACFC control whether (and how) the system sends PPP packets with PFC or ACFC. Send setting options include:

•mandatory: requested, repeated indefinitely if NAK'd

•preferable: requested, repeated up to MaxAttempts times if NAK'd

•supported: not requested, a peer request will be ACK'd

•not supported: not requested, NAK'd if the peer requests it

IPCP ADDRESS NEGOTIATION INITIATION

IPCP address negotiation initiation defines when IPCP will initiate “IP address” IPCP option negotiation. The possible choices are:

•always initiate: IPCP will always initiate the IP address option negotiation (on a PPP link).

•If IP Address Unknown: IPCP will initiate the negotiation only when the peer’s IP address is unknown (for example, the system is running in the no-security mode, or the device entry does not have an IP address configured.

Note: The default value is “Always Initiate.”

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