Cisco ISE - Line Card ISE Manual de usuario descargar pdf (Pagina 42)

Cisco IOS SoftwareConfiguration for theCisco 12000 SeriesOne-Port Channelized OC-12/STM-4(DS1/E1) ISE Line

How to Configure Layer 2 Features

Cisco IOS Release 12.0(27)S1

Step 4 Enable PPP encapsulation.

Router(config-if)# encapsulation ppp

Router(config-if)#

Step 5 Enable Multilink PPP.

Router(config-if)# ppp multilink

Router(config-if)#

Step 6 Disable CDP on the serial link.

Router(config-if)# no cdp enable

Router(config-if)#

Note CDP should be disabled on serial links belonging to an MLPPP bundle because

CDP packets cannot be encapsulated on these links. CDP can be enabled on the

MLPPP bundle, but not on individual serial links.

Step 7 Assign the interface to a multilink bundle.

Router(config-if)# multilink-group

group-number

Router(config-if)#

Step 8 Optional. Enable Challenge Handshake Authentication Protocol (CHAP) authentication.

Router(config-if)# ppp chap hostname group

group-number

Router(config-if)#

Note If more than one bundle is configured on the Cisco 12000 series Internet Router,

you must add the ppp chap hostname group command to both the bundle and link

configurations.

Disable PPP Multilink Fragmentation

By default, PPP multilink fragmentation is enabled. To disable PPP multilink fragmentation, use the

following command in interface configuration mode:

• Disable PPP multilink fragmentation.

Router(config-if)# no ppp multilink fragmentation

Router(config-if)# exit

Router#

Note Enabling fragmentation reduces the delay latency among bundle links, but adds

some load to the CPU. Disabling fragmentation can result in better throughput.

If your data traffic is consistently of a similar size, Cisco recommends that you

disable fragmentation. In this case, the benefits of fragmentation might be

outweighed by the added load on the CPU.

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Cisco ISE - Line Card ISE Manual de usuario Pagina 42