Specifications

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Cisco Wide Area Application Services Command Reference

OL-11817-01

Chapter 3 CLI Commands

(config) wccp slow-start

To enable the slow-start capability of the caching service on the WAE, use the wccp slow-start global

configuration command. To disable slow-start capability, use the no form of this command.

wccp slow-start enable

Syntax Description

Defaults Enabled

Command Modes global configuration

Device Modes application-accelerator

Usage Guidelines Within a service group of WAEs, TCP connections are redirected to other WAEs as units are added or

removed. A WAE can be overloaded if it is reassigned new traffic too quickly or introduced abruptly into

a fat pipe.

WCCP slow start performs the following tasks to prevent a WAE from being overwhelmed when it comes

online or is reassigned new traffic:

• TCP flow protection when WCCP 2 is enabled and a WAE is introduced into the service group

• TCP flow protection when WCCP 2 is disabled and a WAE is leaving the service group

• Load assignment to the WAE in slow increments rather than a full load at bootup

Slow start is applicable only in the following cases:

• Initial bootup when there is no WAE yet present in the service group

• When a new WAE is added to a service group that is not handling the full load; for example, when

there are some buckets that are being shed by the service group

In all other cases slow start is not necessary, and all the WAEs can be immediately assigned their share

of traffic.

Note WCCP works only with IPv4 networks.

enable Enables WCCP slow start.