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Info
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Link Monitoring is not available in SBC CNe Edge. 


To Create a Link Monitor Table entry:

Info
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Link Monitor only supports TCP/TLS SIP connections and does not support UDP SIP connections.

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Managing Link Monitor Configuration Tables
Managing Link Monitor Configuration Tables
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Settings - Field Definitions

FieldDescription
Monitor Type

Valid entries:

CAC/IPSEC. Link is monitored via CAC/IPSEC profile.

Backup Default Route. Link is monitored for problems on the default route to the ISP. The SBC recognizes when the Internet destination is not reachable from a given (preferred) ISP; all subsequent calls are routed (via backup default route) to the secondary ISP to reach the intended Internet destination. For details on configuring a Backup Default Route, refer to:

Info
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Both CAC/IPSEC and Backup Default Route are available options for SBC 1000/2000. 

For the SBC SWe Edge, Monitor Type is a read-only option and is always set to Backup Default Route. 


Monitored Peer TypeSpecifies the type, either host or gateway, that the link is monitoring.
If the peer type is host, the ICMP Echo and Echo Reply is the the protocol used. If the peer is a gateway, the protocol is ARP request/reply.
Host NameSpecifies the address of the host to monitor. The entry must be in IPv4 format or the Fully Qualified Domain Name (FQDN) of the host being monitored. This field is visible only when Host is selected from the Monitored Peer Type drop down list.
Gateway IP AddressThe IP address of the gateway. This field is visible only when Gateway is selected from the Monitored Peer Type drop down list. 
Lync CAC Profile

Use this to select a pre-configured Lync CAC profile. The Lync CAC profile information is sent to the HQ Lync server once each five minutes and after performing an IP layer reroute following a failure (if configured).

This field only applies when Monitor type is configured for CAC/IPSEC, and visible only when Gateway is selected from the Monitored Peer Type drop down list.

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This setting applies to SBC 1000/2000 only.


Service Status

The Service Status field indicates the link status of the Link Monitor to the monitored host. Status entries include:

  • Initializing: Green
  • Down: Red
  • Ready: Blue
  • Active: Green
  • Degraded: Yellow
DisplayClick on the Counters option to obtain detailed information of the Host. The Link Monitor Counters screen details the Gateway, Number of Poll Attempts, and Number of Successful Polls.
Poll Period

Specifies the polling interval, in seconds, for testing the link status. The host or the nexthop gateway specified by HostIPAddress is probed once each specified interval.

For Default Backup Route configuration, if a faster failover is desired, update the Poll Period, Failed Polls for Down State, and SuccessfulPolls for Up State, as desired.

Failed Polls for Down StateSpecifies the number of consecutive failed polling attempts made against the host specified in Host IP Address field after which the host is declared to be in a down state. When the gateway is declared down, the associated IPsec tunnel is torn down (for CAC/IPSEC configuration) or route is switched from the primary default route to the backup default route (for Default Backup Route configuration).
Successful Polls for Up StateSpecifies the number of successful polls made against the host specified in the Host IP Address field before declaring this gateway or host as service ready.
Associated IPsec Tunnels

Use this field to select a maximum of four pre-configured IPsec tunnels.

This field only applies when Monitor type is configured for CAC/IPSEC, and visible only when Gateway is selected from the Monitored Peer Type drop down list.

Info
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This setting applies to SBC 1000/2000 only.


Switch Back to Primary Gateway via Link Monitor

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