Cisco 800 Series Notes de mise à jour - Page 19

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Configuration files must conform to the following:

•

B Channel Activation

When a call comes in, a B channel is activated. If the amount of traffic on the B channel exceeds a

threshold, the other B channel is activated. If the amount of traffic falls below the threshold, one of the

B channels is deactivated. The B channel that is initially activated when the call comes in is not

necessarily B1 nor is the B channel that is deactivated when the traffic level lessens necessarily B2.

Cisco 800 Series Memory Management When Using WFQ

When weighted fair queuing (WFQ) is used on the Dialer interface, or when WFQ is used in the default

class of a service policy, the following parameters need to be set to the values shown because of the

limited amount of memory on the router:

•

For example, if you apply WFQ to the Dialer interface, you need to configure it as follows:

interface Dialer 1

fair-queue 64 64 0

hold-queue 64 out

In this example, the command fair-queue 64 64 0 limits the number of conversations to 64, and sets the

discard threshold to 64. The command hold-queue 64 out limits the maximum number of output packets

to 64.

In another example, if you configure a service policy, and WFQ is used on the default class, you need to

configure the policy as follows:

policy-map mypolicy

class voice

priority 100

class class-default

fair-queue 64

queue-limit 64

int dialer 1

service-policy out mypolicy

hold-queue 64 out

78-12776-04

There must be no leading or trailing spaces in the name and revision fields of the image name or

configuration file name. The dot symbol "." can only be used as the separator between ID and

Revision fields.

Configuration files downloaded from the PE must not contain any of the following CLIs:

–

snmp server

–

engineID

local

–

any CLI that is not from the configuration terminal mode, such as help or write memory

–

Congestive Discard Threshold: 64 or less

Number Dynamic Conversation Queues: 64 or less

Total maximum output packets: 64 or less

Release Notes for the Cisco 800 Series Routers for Cisco IOS Release 12.1(5)YC

Important Notes