Cisco Wide Area Applications Services Command Reference Guide 5.3.1

(config-scxt) appnav-controller-group

To configure the name of the ANCG to be used in a service context, use the appnav-controller-group service context configuration command. To unconfigure the ANCG, use the no form of this command.

appnav-controller-group ancgroupname

no appnav-controller-group ancgroupname

Syntax Description


appnav-controller-group ancgroupname	Specifies the name of the ANCG to add to the service context. The ANCG must have been previously configured by the service-insertion appnav-controller-group command.

Defaults

No default behavior or values.

Command Modes

Service context configuration

Device Modes

appnav-controller

Usage Guidelines

A service context can have only one member ANCG.

Examples

The following example shows how to add the ANCG to the service context:

WAE(config)# service-insertion service-context mycontext

WAE(config-scxt)# appnav-controller-group myControllerGroup

Related Commands

(config-scxt) authentication

To configure the service context authentication key, use the authentication service context configuration command. To unconfigure the authentication key, use the no form of this command.

authentication sha1 key authkey

no authentication sha1 key authkey

Syntax Description


sha1 key authkey	Enables authentication between devices in the AppNav Cluster and specifies an authentication key of up to 64 alphanumeric characters. This key must match the key configured on the WNs in the cluster.

Defaults

No key is defined and authentication is not enabled.

Command Modes

Service context configuration

Device Modes

appnav-controller

Usage Guidelines

The specified key must match the key configured on the other devices in the cluster.

Examples

The following example shows how to configure an authentication key:

WAE(config)# service-insertion service-context mycontext

WAE(config-scxt)# authentication sha1 key myauthkey

Related Commands

(config-scxt) description

To configure the service context description, use the description service context configuration command. To unconfigure the description, use the no form of this command.

description description

no description description

Syntax Description


description	Specifies a description of the service context with up to 200 alphanumeric and space characters.

Defaults

No default behavior or values.

Command Modes

Service context configuration

Device Modes

appnav-controller

Examples

The following example shows how to configure a description:

WAE(config)# service-insertion service-context mycontext

WAE(config-scxt)# description My service context

Related Commands

(config-scxt) enable

To enable the service context for operation, use the enable service context configuration command. To disable the service context, use the no form of this command.

enable [graceful]

no enable

Syntax Description


graceful	(Optional) Enables the service context for operation on a new device in a graceful way that does not enable interception on the device until all cluster devices have agreed that this device has joined the cluster. Use this option only when adding a new device to an existing cluster.

Defaults

Disabled.

Command Modes

Service context configuration

Device Modes

appnav-controller

Usage Guidelines

A service context must be enabled before it can operate to distribute and optimize traffic.

If you use the graceful option when enabling a service context on a new ANC, the new ANC is added to the cluster only after all devices and the new ANC have agreed that they can all communicate with each other and the addition of the new ANC has no negative impact on the existing cluster.

If you do not use the graceful option when enabling a service context on a new ANC, the new ANC is added immediately. You have the responsibility to ensure that the new ANC has network connectivity and can communicate with all other devices in the cluster. If some devices cannot communicate with the new ANC, its addition to the cluster can degrade the cluster and result in pass-through traffic.

Use the graceful option only when adding a new device to an existing cluster, not when enabling a new cluster for the first time.

Examples

The following example shows how to enable a service context:

WAE(config)# service-insertion service-context mycontext

WAE(config-scxt)# enable

Related Commands

(config-scxt) service-node-group

To configure the name of a WNG to be used in a service context, use the service-node-group service context configuration command. To unconfigure the WNG, use the no form of this command.

service-node-group sngroupname

no service-node-group sngroupname

Syntax Description


service-node-group sngroupname	Specifies the name of a WNG to add to the service context. The WNG must have been previously configured by the service-insertion service-node-group command.

Defaults

No default behavior or values.

Command Modes

Service context configuration

Device Modes

appnav-controller

Usage Guidelines

An AppNav Cluster can have up to 32 member WNGs and a maximum of 32 WNs.

Examples

The following example shows how to add two WNGs to the service context:

WAE(config)# service-insertion service-context mycontext

WAE(config-scxt)# service-node-group LondonNodeGroup

WAE(config-scxt)# service-node-group ChicagoNodeGroup

Related Commands

(config-scxt) service-policy

To configure the name of the AppNav policy to be used in a service context, use the service-policy service context configuration command. To unconfigure the AppNav policy, use the no form of this command.

service-policy policyname

no service-policy policyname

Syntax Description


service-policy policyname	Specifies the name of the AppNav policy to add to the service context. The policy must have been previously configured.

Defaults

No default behavior or values.

Command Modes

Service context configuration

Device Modes

appnav-controller

Usage Guidelines

A service context can have only one configured AppNav policy.

Examples

The following example shows how to add the AppNav policy to the service context:

WAE(config)# service-insertion service-context mycontext

WAE(config-scxt)# service-policy myAppNavPolicy

Related Commands