SONUS-GATEWAY-SIGNALLING-MIB

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Organization: Sonus Networks, Inc.

Last Updated: 2001-07-31

Category: Sonus Networks VoIP Softswitch, VoIP and Telephony

Description: Manages Sonus Networks VoIP gateway signaling protocol configuration and inter-gateway communication.

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What Is SONUS-GATEWAY-SIGNALLING-MIB?

The SONUS-GATEWAY-SIGNALLING-MIB is a vendor-specific MIB module from Sonus Networks (now part of Ribbon Communications) covering IP call-signaling-channel management on its VoIP media gateways and softswitches. It exposes configuration data for signaling protocol timers, keepalive intervals, and automated failover/redirect actions used when a signaling peer becomes unreachable. Administrators use it to monitor the health and status of call-control signaling channels, including whether keepalive timers are firing correctly and whether failover actions to backup destinations have been triggered, which directly reflects the operational status of the gateway's call-signaling software. It builds on general SNMP SMI conventions and complements other Sonus device MIBs (such as interface and redundancy MIBs) that together describe the gateway's overall health. It is typically deployed in carrier and enterprise VoIP networks where Sonus gateways interconnect PSTN and IP telephony infrastructure. Engineers can download the SONUS-GATEWAY-SIGNALLING-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in SONUS-GATEWAY-SIGNALLING-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Sonus Networks VoIP media gateway
Sonus softswitch

Monitoring Examples

An administrator polling sonusGwSigPortTable/sonusGwSigPortEntry can see per-port signaling configuration such as sonusGwSigPortIpAddress, while sonusGwSigSrvTimerT301 and sonusGwSigSrvTimerT303 reveal whether call-setup timers are tuned to expected values. Monitoring sonusGwSigTimerKeepalive alongside sonusGwSigAction and its associated sonusGwSigActionDestIpAddr/sonusGwSigActionDestPort shows whether the gateway has failed over signaling to an alternate destination, which would indicate a lost signaling peer. Repeated triggering of sonusGwSigActionDir changes without recovery would flag a persistent signaling-path problem.

What Can Be Monitored

signaling channel timer values
keepalive interval status
signaling failover actions
signaling port IP configuration
call-setup timer tuning

Imported Objects

From SNMPv2-SMI

Counter64
Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

DisplayString
RowStatus

From SONUS-COMMON-MIB

sonusEventClass	OBJECT-TYPE
sonusEventDescription	OBJECT-TYPE
sonusEventLevel	OBJECT-TYPE

From SONUS-SMI

sonusSignallingMIBs

OBJECT-IDENTITY

From SONUS-TC

SonusAdminState
SonusServiceState

How to Use in IPNetwork Monitor

Example using sonusGwSigActGwFromBytesSent OID:

Select a Sonus Networks VoIP media gateway, Sonus softswitch (call-signaling keepalive/failover status) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type sonusGwSigActGwFromBytesSent into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The total number of signalling bytes sent to this remote Gateway for incoming calls. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter64-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
sonusGatewaySignallingMIB	1.3.6.1.4.1.2879.2.6.2			The MIB Module for IP Call Signal Channel Management.
sonusGatewaySignallingMIBObjects	1.3.6.1.4.1.2879.2.6.2.1
sonusGwSigTimerObjects	1.3.6.1.4.1.2879.2.6.2.1.1
I32 sonusGwSigSrvTimerT301	1.3.6.1.4.1.2879.2.6.2.1.1.1	Integer32	read-write	This is the gateway to gateway call establishment timer T301 (in seconds). This value applies to all future GW-GW calls.
I32 sonusGwSigSrvTimerT303	1.3.6.1.4.1.2879.2.6.2.1.1.2	Integer32	read-write	This is the gateway to gateway call setup timer T303 (in seconds). This value applies to all future GW-GW calls.
I32 sonusGwSigTimerEstabish	1.3.6.1.4.1.2879.2.6.2.1.1.3	Integer32	read-write	This is the Gateway Signal Channel Establishment Timer (in seconds.) This value applies to all signal channels.
I32 sonusGwSigTimerKeepalive	1.3.6.1.4.1.2879.2.6.2.1.1.4	Integer32	read-write	This is the Gateway Signal Channel Keepalive Timer (in seconds.) This value applies to all signal channels.
sonusGwSigActionObjects	1.3.6.1.4.1.2879.2.6.2.1.2
INT sonusGwSigAction	1.3.6.1.4.1.2879.2.6.2.1.2.1	INTEGER	read-write	The action to be taken on the specified link.
IP sonusGwSigActionDestIpAddr	1.3.6.1.4.1.2879.2.6.2.1.2.2	IpAddress	read-write	The IP Address of the Destination Gateway to which the signalling link will be opened or closed.
I32 sonusGwSigActionDestPort	1.3.6.1.4.1.2879.2.6.2.1.2.3	Integer32	read-write	The Port Number to which a call sig link will be opened.
INT sonusGwSigActionDir	1.3.6.1.4.1.2879.2.6.2.1.2.4	INTEGER	read-write	The direction of the link which we will be opening or closing.
sonusGwSigPortTable	1.3.6.1.4.1.2879.2.6.2.1.3		not-accessible	Table of Gateway Signal Listen Port configurations. Limit of two ports.
sonusGwSigPortEntry	1.3.6.1.4.1.2879.2.6.2.1.3.1		not-accessible	Gateway Signal Listen Port configuration.
I32 sonusGwSigPortIndex	1.3.6.1.4.1.2879.2.6.2.1.3.1.1	Integer32	read-only	Identifies the Signal Listen Port entry.
IP sonusGwSigPortIpAddress	1.3.6.1.4.1.2879.2.6.2.1.3.1.2	IpAddress	read-write	IP Address of the Gateway Signal Listen Port - this is a required parameter.
I32 sonusGwSigPortNum	1.3.6.1.4.1.2879.2.6.2.1.3.1.3	Integer32	read-write	TCP port number of Gateway Signal Listen Port (default is Sonus registered port 2569).
INT sonusGwSigPortInterface	1.3.6.1.4.1.2879.2.6.2.1.3.1.4	INTEGER	read-write	The interface type of Gateway Signal Listen Port. This element select which gateway network interfaces to use for GW-GW signaling traffic. 'mgtnif' routes traffic over the gateway Managment ports. 'nif' routes traffic over one of the gateway PNS ports.
INT sonusGwSigPortRole	1.3.6.1.4.1.2879.2.6.2.1.3.1.5	INTEGER	read-write	Role of the Gateway Signal Listen Port.
SON sonusGwSigPortMode	1.3.6.1.4.1.2879.2.6.2.1.3.1.6	SonusServiceState	read-write	Mode of the Gateway Signal Listen Port.
SON sonusGwSigPortState	1.3.6.1.4.1.2879.2.6.2.1.3.1.7	SonusAdminState	read-write	State of the Gateway Signal Listen Port.
ROW sonusGwSigPortRowStatus	1.3.6.1.4.1.2879.2.6.2.1.3.1.8	RowStatus	read-write	This is for SNMP use.
sonusGwSigPortStatTable	1.3.6.1.4.1.2879.2.6.2.1.4		not-accessible	Table of the status of Gateway Signal Listen Ports.
sonusGwSigPortStatEntry	1.3.6.1.4.1.2879.2.6.2.1.4.1		not-accessible	Status of Gateway Signal Listen Port.
I32 sonusGwSigPortStatIndex	1.3.6.1.4.1.2879.2.6.2.1.4.1.1	Integer32	read-only	Identifies the Signal Listen Port entry.
IP sonusGwSigPortStatIpAddress	1.3.6.1.4.1.2879.2.6.2.1.4.1.2	IpAddress	read-only	IP Address of the Gateway Signal Listen Port.
I32 sonusGwSigPortStatNum	1.3.6.1.4.1.2879.2.6.2.1.4.1.3	Integer32	read-only	TCP port number of Gateway Signal Listen Port.
INT sonusGwSigPortStatInterface	1.3.6.1.4.1.2879.2.6.2.1.4.1.4	INTEGER	read-only	The interface type of Gateway Signal Listen Port.
INT sonusGwSigPortStatRole	1.3.6.1.4.1.2879.2.6.2.1.4.1.5	INTEGER	read-only	Role of the Gateway Signal Listen Port.
I32 sonusGwSigPortStatNif	1.3.6.1.4.1.2879.2.6.2.1.4.1.6	Integer32	read-only	The network interface (NIF) ifIndex for this Gateway Signal Listen Port.
SON sonusGwSigPortStatState	1.3.6.1.4.1.2879.2.6.2.1.4.1.7	SonusServiceState	read-only	State of the Gateway Signal Listen Port.
sonusGwSigActGwStatusTable	1.3.6.1.4.1.2879.2.6.2.1.5		not-accessible	This table contains status of the active signaling channels with other gateways.
sonusGwSigActGwStatusEntry	1.3.6.1.4.1.2879.2.6.2.1.5.1		not-accessible	Status of signaling channel another gateway.
STR sonusGwSigActGwName	1.3.6.1.4.1.2879.2.6.2.1.5.1.1	DisplayString	read-only	Name of the remote Gateway.
IP sonusGwSigActGwIpAddress	1.3.6.1.4.1.2879.2.6.2.1.5.1.2	IpAddress	read-only	IP Address of the remote Gateway.
INT sonusGwSigActGwLnkProto	1.3.6.1.4.1.2879.2.6.2.1.5.1.3	INTEGER	read-only	The protocol being used between gateways.
I32 sonusGwSigActGwNumActiveCalls	1.3.6.1.4.1.2879.2.6.2.1.5.1.4	Integer32	read-only	Number of active calls between local and remote Gateway.
I32 sonusGwSigActGwNumActiveCallsTo	1.3.6.1.4.1.2879.2.6.2.1.5.1.5	Integer32	read-only	Number of active calls to this remote Gateway.
I32 sonusGwSigActGwNumActiveCallsFrom	1.3.6.1.4.1.2879.2.6.2.1.5.1.6	Integer32	read-only	Number of active calls from this remote Gateway.
SON sonusGwSigActGwToState	1.3.6.1.4.1.2879.2.6.2.1.5.1.7	SonusServiceState	read-only	Current state of the signaling link to this remote Gateway
SON sonusGwSigActGwFromState	1.3.6.1.4.1.2879.2.6.2.1.5.1.8	SonusServiceState	read-only	Current state of the signaling link from this remote Gateway
INT sonusGwSigActGwInterface	1.3.6.1.4.1.2879.2.6.2.1.5.1.9	INTEGER	read-only	The interface used for this link.
C64 sonusGwSigActGwFromBytesSentEx	1.3.6.1.4.1.2879.2.6.2.1.5.1.10	Counter64	read-only	The total number of signalling bytes sent to this remote Gateway for incoming calls
C64 sonusGwSigActGwFromPdusSent	1.3.6.1.4.1.2879.2.6.2.1.5.1.11	Counter64	read-only	The total number of signalling PDUS sent to this remote Gateway for incoming calls
C64 sonusGwSigActGwFromBytesReceived	1.3.6.1.4.1.2879.2.6.2.1.5.1.12	Counter64	read-only	The total number of signalling bytes received from this remote Gateway for incoming calls
C64 sonusGwSigActGwFromPdusReceived	1.3.6.1.4.1.2879.2.6.2.1.5.1.13	Counter64	read-only	The total number of signalling PDUS received from this remote Gateway for incoming calls
C64 sonusGwSigActGwFromTotalCalls	1.3.6.1.4.1.2879.2.6.2.1.5.1.14	Counter64	read-only	The total number of calls originated by the remote on this link
I32 sonusGwSigActGwFromCallRate	1.3.6.1.4.1.2879.2.6.2.1.5.1.15	Integer32	read-only	The number of calls/sec processed by the GWFE in the last minute on the link which was originated by the remote
C64 sonusGwSigActGwToBytesSent	1.3.6.1.4.1.2879.2.6.2.1.5.1.16	Counter64	read-only	The total number of signalling bytes sent to this remote Gateway for outgoing calls
C64 sonusGwSigActGwToPdusSent	1.3.6.1.4.1.2879.2.6.2.1.5.1.17	Counter64	read-only	The total number of signalling PDUS sent to this remote Gateway for outgoing calls
C64 sonusGwSigActGwToBytesReceived	1.3.6.1.4.1.2879.2.6.2.1.5.1.18	Counter64	read-only	The total number of signalling bytes received from this remote Gateway for outgoing calls
C64 sonusGwSigActGwToPdusReceived	1.3.6.1.4.1.2879.2.6.2.1.5.1.19	Counter64	read-only	The total number of signalling PDUS received from this remote Gateway for outgoing calls
C64 sonusGwSigActGwToTotalCalls	1.3.6.1.4.1.2879.2.6.2.1.5.1.20	Counter64	read-only	The total number of calls originated locally on this link
I32 sonusGwSigActGwToCallRate	1.3.6.1.4.1.2879.2.6.2.1.5.1.21	Integer32	read-only	The number of calls/sec processed by the GWFE in the last minute on the link which was originated locally
I32 sonusGwSigActGwFromLnkMajorVer	1.3.6.1.4.1.2879.2.6.2.1.5.1.22	Integer32	read-only	The major version of link protocol being used between gateways.
I32 sonusGwSigActGwFromLnkMinorVer	1.3.6.1.4.1.2879.2.6.2.1.5.1.23	Integer32	read-only	The minor version of link protocol being used between gateways.
I32 sonusGwSigActGwToLnkMajorVer	1.3.6.1.4.1.2879.2.6.2.1.5.1.24	Integer32	read-only	The major version of link protocol being used between gateways.
I32 sonusGwSigActGwToLnkMinorVer	1.3.6.1.4.1.2879.2.6.2.1.5.1.25	Integer32	read-only	The minor version of link protocol being used between gateways.
sonusGatewaySignallingMIBNotifications	1.3.6.1.4.1.2879.2.6.2.2
sonusGatewaySignallingMIBNotificationsPrefix	1.3.6.1.4.1.2879.2.6.2.2.0
NTF sonusGwCallSigChanOpenNotification	1.3.6.1.4.1.2879.2.6.2.2.0.1			This trap indicates that a Call Signalling channel to a Remote Gateway has been opened. This trap has been replaced with sonusGwSigChanOpenNotification.
NTF sonusGwCallSigChanCloseNotification	1.3.6.1.4.1.2879.2.6.2.2.0.2			This trap indicates that a Call Signalling channel to a Remote Gateway has been closed. This trap has been replaced with sonusGwSigChanCloseNotification.
NTF sonusGwSigChanOpenNotification	1.3.6.1.4.1.2879.2.6.2.2.0.3			This trap indicates that a Call Signalling channel to a Remote Gateway has been opened.
NTF sonusGwSigChanCloseNotification	1.3.6.1.4.1.2879.2.6.2.2.0.4			This trap indicates that a Call Signalling channel to a Remote Gateway has been closed.
sonusGatewaySignallingMIBNotificationsObjects	1.3.6.1.4.1.2879.2.6.2.2.1
STR sonusGwRemoteGwName	1.3.6.1.4.1.2879.2.6.2.2.1.1	DisplayString	read-only	Name of the remote Gateway.
INT sonusGwCloseReasonCode	1.3.6.1.4.1.2879.2.6.2.2.1.2	INTEGER	read-only	Reason for close of Call Signalling Channel .
IP sonusGwRemoteGwAddr	1.3.6.1.4.1.2879.2.6.2.2.1.3	IpAddress	read-only	Ip Address of the remote Gateway.

RFC description

IP Call Signal Channel Management for Sonus Networks VoIP gateway devices.

Start monitoring Sonus Networks VoIP media gateway, Sonus softswitch (call-signaling keepalive/failover status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download SONUS-GATEWAY-SIGNALLING-MIB