Connecting SRX Series Hardware to Create a Chassis Cluster
An SRX Series chassis cluster is created by physically connecting two identical cluster-supported SRX Series devices together using a pair of the same type of Ethernet connections. The connection is made for both a control link and a fabric (data) link between the two devices.
 | Note: You can connect two control links (SRX5000 and SRX3000 lines only) and two fabric links between the two devices in the cluster to reduce the chance of control link and fabric link failure. For more information, see Understanding Chassis Cluster Dual Control Links and Understanding Chassis Cluster Dual Fabric Links. |
Control links in a chassis cluster are made using specific ports.
You must use the following ports to form the control link on the SRX Series branch devices:
- For SRX100 devices, connect the fe-0/0/7 port to the fe-1/0/7 port
- For SRX210 devices, connect the fe-0/0/7 port to the fe-2/0/7 port
- For SRX240 devices, connect the ge-0/0/1 port to the ge-5/0/1 port
- For SRX650 devices, connect the ge-0/0/1 port to the ge-9/0/1 port
For a device from the SRX3000 line, the connection that serves as the control link must be between the built-in control ports on each device.
SRX5000 line devices do not have built-in ports, so the control link for these gateways must be the control ports on their Services Processing Cards (SPCs) with a slot numbering offset of 6 for SRX5600 devices and 12 for SRX5800 devices.
When you connect a single control link on SRX3000 or SRX5000 line devices, the control link ports are a one-to-one mapping with the Routing Engine slot. If your Routing Engine is in slot 0, you must use control port 0 to link the Routing Engines.
| Note: For dual control links on SRX3000 line devices, the Routing Engine must be in slot 0 and the SRX Clustering Module (SCM) in slot 1. The opposite configuration (SCM in slot 0 and Routing Engine in slot 1) is not supported. |
The fabric link connection for the SRX100 must be a pair of Fast Ethernet interfaces and for the SRX210 must be a pair of either Fast Ethernet or Gigabit Ethernet interfaces. The fabric link connection must be any pair of either Gigabit Ethernet or 10-Gigabit Ethernet interfaces on all other SRX Series devices.
Figure 94, Figure 95, Figure 96, Figure 97, Figure 98, and Figure 99 show pairs of SRX Series devices with the fabric links and control links connected.
Figure 94: Connecting SRX Series Devices in a Cluster (SRX5800 Devices)
Figure 95: Connecting SRX Series Devices in a Cluster (SRX3400 Devices)
Figure 96: Connecting SRX Series Devices in a Cluster (SRX650 Devices)
Figure 97: Connecting SRX Series Devices in a Cluster (SRX240 Devices)
Figure 98: Connecting SRX Series Devices in a Cluster (SRX210 Devices)
Figure 99: Connecting SRX Series Devices in a Cluster (SRX100 Devices)
Related Topics
- JUNOS Software Feature Support Reference for SRX Series and J Series Devices
- Understanding What Happens When Chassis Cluster Is Enabled
- SRX Series Chassis Cluster Configuration Overview
- Disabling Switching on SRX100, SRX210, and SRX240 Devices Before Enabling Chassis Clustering
- Example: Setting the Chassis Cluster Node ID and Cluster ID (CLI)
- Example: Configuring the Chassis Cluster Management Interface (CLI)
- Example: Configuring the Number of Redundant Ethernet Interfaces in a Chassis Cluster (CLI)