| Asset ID: |
1-71-1594442.1 |
| Update Date: | 2018-04-28 |
| Keywords: | |
Solution Type
Technical Instruction Sure
Solution
1594442.1
:
When does a Session-Agent go Out of Service
| Related Items |
- Acme Packet 4500
- Acme Packet 4500
|
| Related Categories |
- PLA-Support>Sun Systems>CommsGBU>Session Delivery Network>SN-SND: Acme Service Provider
|
In this Document
Applies to:
Acme Packet 4500
Information in this document applies to any platform.
Goal
To describe when a session-agent goes out of service.
Solution
Ping-method under session-agent can be configured to OPTIONS or INFO and a ping-interval can be configured to periodically ping a session-agent to check if it is reachable or not. When there is no response after couple of re-transmissions (until trans-expire under sip-config expires), the agent is declared as out of service and status is changed to O (Shown in show sipd agents output). Any new requests destined to that IP address will be replied back with 503 by the SD.
When ping-method is not enabled, the default value for timeout is 5 consecutive non-ping transaction timeouts (when constraints are enabled under the session-agent) after which the agent is marked out of service. This behavior can be changed by configuring the option trans-timeouts=X under session-agent where X is the desired number of transaction timeouts. Please note that if constraints are not enabled, then a session-agent never goes out of service for non-ping transactions.
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