Supported Platforms
Related Documentation
- J, LN, SRX Series
- Monitoring Overview
- Monitoring Interfaces
- Additional Information
- Junos OS Interfaces Library for Security Devices
Monitoring SIP ALGs
This section contains the following topics:
Monitoring SIP ALG Calls
Purpose
View information about SIP ALG calls.
Action
Select Monitor>ALGs>SIP>Calls in the J-Web user interface. To view detailed information, select the Call Leg on the SIP calls page.
Alternatively, enter the show security alg sip calls detail command.
Table 1 summarizes key output fields in the SIP calls display.
Table 1: Summary of Key SIP Calls Output Fields
Field | Values | Additional Information |
|---|---|---|
| SIP Calls Information | ||
Call Leg | Call length identifier. | – |
Zone | Client zone identifier. | – |
RM Group | Resource manager group identifier. | – |
Local Tag | Local tag for the SIP ALG User Agent server. | – |
Remote Tag | Remote tag for the SIP ALG User Agent server. | – |
Monitoring SIP ALG Counters
Purpose
View SIP ALG counters information.
Action
Select Monitor>ALGs>SIP>Count in the J-Web user interface, or enter the show security alg sip counters command.
Table 2 summarizes key output fields in the SIP counters display.
Table 2: Summary of Key SIP Counters Output Fields
Field | Values | Additional Information |
|---|---|---|
| SIP Counters Information | ||
INVITE | Number of INVITE requests sent. | An INVITE request is sent to invite another user to participate in a session. |
CANCEL | Number of CANCEL requests sent. | A user can send a CANCEL request to cancel a pending INVITE request. A CANCEL request has no effect if the SIP server processing the INVITE had sent a final response for the INVITE before it received the CANCEL. |
ACK | Number of ACK requests sent. | The user from whom the INVITE originated sends an ACK request to confirm reception of the final response to the INVITE request. |
BYE | Number of BYE requests sent. | A user sends a BYE request to abandon a session. A BYE request from either user automatically terminates the session. |
REGISTER | Number of REGISTER requests sent. | A user sends a REGISTER request to a SIP registrar server to inform it of the current location of the user. A SIP registrar server records all the information it receives in REGISTER requests and makes this information available to any SIP server attempting to locate a user. |
OPTIONS | Number of OPTIONS requests sent. | An OPTION message is used by the User Agent (UA) to obtain information about the capabilities of the SIP proxy. A server responds with information about what methods, session description protocols, and message encoding it supports. |
INFO | Number of INFO requests sent. | An INFO message is used to communicate mid-session signaling information along the signaling path for the call. |
MESSAGE | Number of MESSAGE requests sent. | SIP messages consist of requests from a client to a server and responses to the requests from a server to a client with the purpose of establishing a session (or a call). |
NOTIFY | Number of NOTIFY requests sent. | A NOTIFY message is sent to inform subscribers of changes in state to which the subscriber has a subscription. |
REFER | Number of REFER requests sent. | A REFER request is used to refer the recipient (identified by the Request-URI) to a third party by the contact information provided in the request. |
SUBSCRIBE | Number of SUBSCRIBE requests sent. | A SUBSCRIBE request is used to request current state and state updates from a remote node. |
UPDATE | Number of UPDATE requests sent. | An UPDATE request is used to create a temporary opening in the firewall (pinhole) for new or updated Session Description Protocol (SDP) information. The following header fields are modified: Via, From, To, Call-ID, Contact, Route, and Record-Route. |
| SIP Error Counters | ||
Total Pkt-in | SIP ALG total packets received. | – |
Total Pkt dropped on error | Number of packets dropped by the SIP ALG. | – |
Transaction error | SIP ALG transaction errors. | – |
Call error | SIP ALG call errors. | – |
IP resolve error | SIP ALG IP address resolution errors. | – |
NAT error | SIP ALG NAT errors. | – |
Resource manager error | SIP ALG resource manager errors. | – |
RR header exceeded max | Number of times the SIP ALG RR (Record-Route) headers exceeded the maximum limit. | – |
Contact header exceeded max | Number of times the SIP ALG contact header exceeded the maximum limit. | – |
Call dropped due to limit | SIP ALG calls dropped because of call limits. | – |
SIP stack error | SIP ALG stack errors. | – |
Monitoring SIP ALG Rate Information
Purpose
View SIP ALG rate information.
Action
Select Monitor>ALGs>SIP>Rate in the J-Web user interface, or enter the show security alg sip rate command.
Table 3 summarizes key output fields in the SIP rate display.
Table 3: Summary of Key SIP Rate Output Fields
Field | Values | Additional Information |
|---|---|---|
| SIP Rate Information | ||
CPU ticks per microseconds is | SIP ALG CPU ticks per microsecond. | – |
Time taken for the last message in microseconds is | Time, in microseconds, that the last SIP ALG message needed to transit the network. | – |
Number of messages in 10 minutes | Total number of SIP ALG messages transiting the network in 10 minutes. | – |
Time taken by the messages in 10 minutes | Total time, in microseconds, during an interval of less than 10 minutes for the specified number of SIP ALG messages to transit the network. | – |
Rate | Number of SIP ALG messages per second transiting the network. | – |
Monitoring SIP ALG Transactions
Purpose
View information about SIP ALG transactions.
Action
Select Monitor>ALGs>SIP>Transactions in the J-Web user interface, or enter the show security alg sip transactions command.
Table 4 summarizes key output fields in the SIP transactions display.
Table 4: Summary of Key SIP Transactions Output Fields
Field | Values | Additional Information |
|---|---|---|
| SIP Transactions Information | ||
Transaction Name |
| – |
Method | The method to be performed on the resource. Possible methods:
| – |
Related Documentation
- J, LN, SRX Series
- Monitoring Overview
- Monitoring Interfaces
- Additional Information
- Junos OS Interfaces Library for Security Devices
Published: 2014-12-07
Supported Platforms
Related Documentation
- J, LN, SRX Series
- Monitoring Overview
- Monitoring Interfaces
- Additional Information
- Junos OS Interfaces Library for Security Devices
