Juniper JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010, Configuration Manual

Page: 169 / 774

attempts to forward the traffic on a different link. If this attempt also fails,
the router uses a round-robin approach.
You can configure bundles as follows:
■
On a cOCx/STMx line module and its corresponding I/O modules, you can
configure:
■
Member links from different OC3/STM1 ports in the same bundle
■
The 336 available T1 channels combined in any manner that does not exceed
8 links per bundle (for example, 336 single-link T1 bundles, 42 eight-link
bundles, or 41 eight-link bundles and 8 single-link bundles)
■
The 252 available E1 channels combined in any manner that does not exceed
8 links per bundle (for example, 252 single-link E1 bundles, 34 eight-link
bundles, or 33 eight-link bundles and 8 single-link bundles)
■
On a COCX-F3 line module and its corresponding I/O modules, you can configure:
■
Up to 8 member links from different ports in the same bundle
■
Up to 12 bundles
■
On a CT3 or CT3/T3-F0 line module and its corresponding I/O module, you can
configure:
■
Only member links from the same T3 interfaces into the same bundle. You
cannot configure member links from different T3 ports in the same bundle.
■
The 28 available T1 channels on each port combined in any manner that
does not exceed 8 links per bundle (for example, 28 single-link T1 bundles
or 3 eight-link bundles and 4 single-link bundles per port)
Unsupported MLFR Features
E Series routers do not support the following MLFR features:
■
Fragmentation
The router does not support MLFR fragmentation or reassembly. When using
MLFR on the router, configure all peer devices so that they do not fragment MLFR
frames. The router drops all fragmented frames that it receives.
■
Resequencing of out-of-order packets in the absence of fragmentation
Given the location in the network where the router resides, the NxT1 links to a
customer site represent one of many places across the IP network where packets
might be received out of order. For example, if the router has multiple uplinks
to a core router, packets might be received out of order across these links. Packet
resequencing is therefore left as an exercise for the end station rather than the
aggregation router.
Unsupported MLFR Features
■ 137
Chapter 3: Configuring Multilink Frame Relay