Juniper JUNOS OS 10.4 - RELEASE NOTES REV 5 Release Note page 37

Copyright © 2011, Juniper Networks, Inc.
New Features in Junos OS Release 10.4 for M Series, MX Series, and T Series Routers
hierarchy levels. This statement enables BGP to accept larger numbers
routing options]
of Layer 3 VPN BGP updates with unique inner VPN labels. Including the
l3vpn-composite-nexthop
convergence performance of PE routers participating in a Layer 3 VPN in a multivendor
environment.
The Junos OS provides the configuration statement
the jtree memory for routes and Layer 3 VPNs. This statement has the following options:
route —Include this statement when you want to support larger routing tables (with
more routes) over firewall filters. For example, you can enable this option when you
want to support a large number of routes for Layer 3 VPNs implemented using MPLS.
However, we recommend enabling this option only if you do not have a very large
firewall configuration.
To allocate more memory for routing tables, include the
chassis memory-enhanced]
[edit chassis memory-enhanced]
route;
—Include this statement when you want to enhance memory to support a
vpn-label
larger number of Layer 3 VPN labels accepted by the
statement.
To allocate more memory for Layer 3 VPN labels, include the
at the [edit chassis memory-enhanced]
[edit chassis memory-enhanced]
vpn-label;
NOTE:
With Junos Release 10.4, the
[edit chassis]
statement at the
[VPNs, System Basics]
Egress protection LSPs—If there is a link or node failure in the core network, a protection
mechanism such as MPLS fast reroute can be triggered on the transport LSPs between
the PE routers to repair the connection within tens of milliseconds. An egress protection
LSP addresses the problem of when a link failure occurs at the edge of the network
(for example, a link failure between a PE router and a CE device).
statement in the configuration enhances scaling and
memory-enhanced
hierarchy level:
hierarchy level:
memory-enhanced route
hierarchy level replaces the
hierarchy level.
[edit chassis]
to reallocate
statement at the
route
l3vpn-composite-nexhop
statement
vpn-label
statement at the
route-memory-enhanced
[edit
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