AIS Router AI2524 Manuel d'utilisateur télécharger pdf (Page 357)

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Chapter 13: AI2524 Frame Relay Configuration Steps

August 1997 Page 13-41

2524UM

In interface configuration mode, configure an IP map to use Cisco

encapsulation and TCP/IP header compression:

frame-relay map ip

ip-address dlci

[broadcast] cisco tcp headercompression

{active | passive}

The default encapsulation is cisco.

Note: An interface that is configured to support TCP/IP header

compression cannot also support priority queuing or

custom queuing.

Configure an Interface for TCP/IP Header Compression

You can configure the interface with active or passive TCP/IP header

compression. Active compression, the default, subjects all outgoing

TCP/IP packets to header compression. Passive compression subjects

an outgoing packet to header compression only if the packet had a

compressed TCP/IP header when it was received on that interface.

In interface configuration mode, apply TCP/IP header compression to

an interface:

1. Configure Cisco encapsulation on the interface.

encapsulation frame-relay

2. Enable TCP/IP header compression on the interface.

frame-relay ip tcp header-compression

[passive]

Note: If an interface configured with Cisco encapsulation is

later configured with IETF encapsulation, all TCP/IP

header compression characteristics are lost. To appl

TCP/IP header compression over an interface configured

with IETF encapsulation, you must configure individual

IP maps, as described in the section Configure an

Individual IP Map for TCP/IP Header Compression.

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AIS Router AI2524 Manuel d'utilisateur Page 357

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