Known Limitations in JUNOS Software Release 9.5 for J-series Services Routers

For this release of JUNOS software, the following features are not supported when chassis clustering is enabled on the router:

All packet-based protocols, such as MPLS, Connectionless Network Service (CLNS), and IP version 6 (IPv6)
Any function that depends on the configurable interfaces:
- lsq-0/0/0—Link services Multilink Point-to-Point Protocol (MLPPP), Multilink Frame Relay (MLFR), and Compressed Real-Time Transport Protocol (CRTP)
- gr-0/0/0—Generic routing encapsulation (GRE) and tunneling
- ip-0/0/0—IP-over-IP (IP-IP) encapsulation
- pd-0/0/0, pe/0/0/0, and mt-0/0/0—All multicast protocols
- lt-0/0/0—Real-time performance monitoring (RPM)
WXC Integrated Services Module (WXC ISM 200)
Layer 2 Ethernet switching
ISDN BRI

Additional limitations include:

For a J-series chassis cluster, the maximum number of redundancy groups is equal to the number of redundant Ethernet interfaces configured by the user.
After fabric interfaces have been configured on a chassis cluster, removing the fabric configuration on either node will cause the redundancy group 0 (RG0) secondary node to move to a disabled state. (Resetting a device to the factory default configuration removes the fabric configuration and thereby causes the RG0 secondary node to move to a disabled state.) After the fabric configuration is committed, do not reset either device to the factory default configuration.
A Fast Ethernet port from a 4-port Ethernet PIM cannot be used as a fabric link port in a chassis cluster.

On J-series Services Routers, IP actions do not work when users select a timeout value greater than 65535 in IDP policy.

Some J-Web pages for new features (for example, the Quick Configuration page for the switching features on J-series Services Routers) display content in one or more modal pop-up windows. In the modal pop-up windows, you can interact only with the content in the window and not with the rest of the J-Web page. As a result, online help is not available when modal pop-up windows are displayed. You can access the online help for a feature only by clicking the Help button on a J-Web page.

Unified Threat Management (UTM) requires 1 GB of memory. If your J2320, J2350, or J4350 device has only 512 MB of memory, you must upgrade the memory to 1 GB to run UTM.