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[SRX] Support for Logical Tunnel Interfaces on SRX Chassis Clusters

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Article ID: KB28204 KB Last Updated: 07 Feb 2018Version: 2.0
Summary:

This article describes the support for Logical Tunnel Interfaces (lt-0/0/0) in SRX Branch and high-end platforms.

Symptoms:

Before 15.1X49-D100

Logical tunnel interfaces (lt-0/0/0) are not shown in Branch SRX devices when in HA mode.

When set in HA mode:
{primary:node0}[edit]
root@550-2# show interfaces
lt-0/0/0 {
    unit 1 {
        encapsulation ethernet;
        peer-unit 2;
        family inet {
            address 10.125.0.106/30;
        }
    }
    unit 2 {
        encapsulation ethernet;
        peer-unit 1;
        family inet {
            address 10.125.0.105/30;
        }
    }
}

{primary:node0}[edit]
root@550-2# run show interfaces terse | match lt
<blank>

 

After 15.1X49-D100

 
root@jtac-srx320-r2014# run show interfaces terse | match lt
lt-0/0/0                up    up
lt-0/0/0.1              up    up   inet     10.15.0.106/30  
lt-0/0/0.2              up    up   inet     10.125.0.105/30 ‚Äč
Solution:

Starting with 15.1X49-D100, logical tunnel (lt-0/0/0) interfaces are supported on Branch SRX platforms and High-end SRX devices in both Standalone and HA mode.

 

Modification History:
2018-02-07: LT interface is supported in cluster mode on branch SRX platforms beginning with Junos 15.1X49-D100
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