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Hop Counts
TANDBERG VIDEO COMMUNICATIONS SERVER ADMINISTRATOR GUIDE
About Hop Counts |
| Configuring Hop Counts |
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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, the request will not be forwarded on any further.
For search requests initiated by the local VCS, the hop count assigned to the request is configurable on a
Search requests received from another zone will already have a hop count assigned. When the request is subsequently forwarded on to a neighbor zone, the lower of the two values (i.e. the original hop count or the hop count configured for that zone) will be used.
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
The hop count value can be between 1 and 255.
The default is 15.
!If your hop counts are set higher than necessary, you may
risk introducing loops into your network. In these situations a search request will be sent around the
network until the hop count reaches 0, consuming resources unnecessarily.
When dialing by URI or ENUM, the hop count used is that
for the associated DNS or ENUM zone via which the destination endpoint (or intermediary SIP Proxy or
gatekeeper) was found.
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 Started |
| Overview and |
| System |
| VCS |
| Zones and | Call | Bandwidth |
| Firewall |
| Applications |
| Maintenance |
| Appendices |
| Status |
| Configuration |
| Configuration |
| Neighbors | Processing | Control |
| Traversal |
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JULY 2008 |
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