TANDBERG D14049.01 manual About Hop Counts, Configuring Hop Counts

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TANDBERG VIDEO COMMUNICATION SERVER ADMINISTRATOR GUIDE

About Hop Counts

Each search request is assigned a hop count value by the system that initiates the search. Every time the request is forwarded to another neighbor gatekeeper or proxy, the hop count value is decreased by a value of 1. When the hop count reaches 0, it will not be forwarded on any further.

The hop count used in search requests initiated by the local VCS is configurable on a zone-by-zone basis. This value will apply to search requests originating from the local VCS and sent to that zone. It will also override any existing hop counts in requests being forwarded to that zone if the original hop count is higher (if the hop count is lower than that set for the zone, the lower value will apply).

For H.323, the hop count only applies to search requests. For SIP, the hop count applies to all requests sent to a zone, affecting the Max-Forwards field in the request.

The hop count value can be between 1 and 255. The default is 15.

When dialing by URI or ENUM, the hop count used is that for the associated DNS or ENUM zone via which the destination endpoint was found.

Hop Counts

Configuring Hop Counts

To configure the hop count for a zone:

•VCS Configuration > Zones.

You will be taken to the Zones page.

Click on the name of the zone you wish to configure. You will be taken to the Edit Zone page.

In the Configuration section, in the Hop Count field, enter the hop count value you wish to use for this zone.

•xConfiguration Zones Zone [1..200] HopCount

For full details on other zone options, see Configuring

Zones.

Introduction	Getting	System	System	H.323 & SIP	Registration	Zones and	Call	Firewall	Bandwidth	Maintenance	Appendices
	Started	Overview	Configuration	Configuration	Control	Neighbors	Processing	Traversal	Control
D 14049.01					62
07.2007