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Figure 3: Routing Matrix
(LCC 0)
T640
TX Matrix
(SCC)
(LCC 2)
T640
Data path
Control path
A TX Matrix router is also referred to as a switch-card chassis (SCC). The CLI uses
to refer to the TX Matrix router. A T640 router in a routing matrix is also referred to
as a line-card chassis (LCC). The CLI uses
router.
LCCs are assigned numbers, 0 through 3, depending on the hardware setup and
connectivity to the TX Matrix router. For more information, see the TX Matrix Router
Hardware Guide. A routing matrix can have up to four T640 routers, and each T640
router has up to eight FPCs. Therefore, the routing matrix as a whole can have up
to 32 FPCs (0 through 31).
In the JUNOS CLI, an interface name has the following format:
type-fpc/pic/port
When you specify the
fpc
Software determines which T640 router contains the specified FPC based on the
following assignment:
On LCC 0, FPC hardware slots 0 through 7 are configured as 0 through 7.
On LCC 1, FPC hardware slots 0 through 7 are configured as 8 through 15.
On LCC 2, FPC hardware slots 0 through 7 are configured as 16 through 23.
On LCC 3, FPC hardware slots 0 through 7 are configured as 24 through 31.
For example, the
in
1
se-1/0/0
labeled
lcc0
. The
11
in
t1-11/2/0
labeled
. The
in
lcc1
20
so-20/0/1
labeled
lcc2
. The
31
in
t3-31/1/0
labeled
.
lcc3
Chapter 2: Understanding Router Interfaces
(LCC 1)
T640
(LCC 3)
T640
as a prefix to refer to a specific T640
lcc
number for a T640 router in a routing matrix, the JUNOS
refers to FPC hardware slot 1 on the T640 router
refers to FPC hardware slot 3 on the T640 router
refers to FPC hardware slot 4 on the T640 router
refers to FPC hardware slot 7 on the T640 router
Interface Naming Overview
scc
59
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