Clustering Connections

Cluster Connections Before X8.8

Cluster Port Reference Before X8.8

Table 1. Cluster Synchronization and Communications

Purpose

 Src. IP

Src. Ports

Protocol

Dest. IP

Dest. Ports

Cluster database synchronization (IPSec AH)

This peer

N/A

51

Other peers

N/A

Key exchange between peers (ISAKMP)

This peer

500

UDP

Other peers

500

Cluster recovery

This peer

30000-35999

UDP

Other peers

4371

Cluster communication

This peer

30000-35999

TCP

Other peers

4369-4380

Bandwidth management (Expressway-C cluster only)

This peer

1719

UDP

Other peers

1719

Cluster Connections X8.8 Onwards

Cluster Port Reference X8.8 Onwards

Table 2. Expressway-C Cluster Database Synchronization and Communications

Purpose

Src. IP

Src. Ports

Protocol

Dest. IP

Dest. Ports

Cluster recovery

This peer

30000-35999

TCP

Other peers

4371

Cluster communication

This peer

30000-35999

TLS

Other peers

4372

Bandwidth management

This peer

1719

UDP

Other peers

1719
Table 3. SIP Calls Routed Between Peers (not shown on diagram)

Purpose

Src. IP

Src. Ports

Protocol

Dest. IP

Dest. Ports

SIP TCP Signaling

This peer

25000-29999

TCP

Other peers

5061

SIP TLS Signaling

This peer

25000-29999

TLS

Other peers

5061

RTP/RTCP

This peer

36000-59999

UDP

Other peers

36000-59999

Bandwidth management

This peer

1719

UDP

Other peers

1719

Note

Dbxsh is a python script that connects to a cluster database on the local loopback address over port 4370. The Dbxsh does not need to authenticate the database before executing the commands. The port is open for connection and is strictly for internal use only. This is accessible from root only.