Filter
Top Products
3-12
Cisco CRS-1 Carrier Routing System 16-Slot Multishelf System Site Planning Guide
OL-7422-04
Chapter 3 Multishelf System Planning
Planning the System Management Network (22-Port SCGE Cards)
Planning the System Management Network
(22-Port SCGE Cards)
The system management network provides a path for the control traffic that is used to configure and
manage the multishelf system. The multishelf system has two types of control networks:
• In-band—(Control network) Consists of one or two 22-port SCGE cards (SC-GE-22=) installed in
the FCC and cabled to each LCC in the system (See Figure 3-4).
• Out-of-band—Consists of console connections between each of the chassis and a system console,
which is typically connected to a terminal server.
Note For redundancy, we recommend two 22-Port SCGE cards installed in each FCC; otherwise, a single card
failure leaves the multishelf system with no in-band control network.
Figure 3-4 Multishelf System Control Network (Single-FCC System Shown)
As you plan the control networks for your multishelf system, consider the following:
• For the (in-band) control network, consider the following:
–
Each route processor (RP) in the multishelf system must be connected to the 22-port SCGE
cards in the FCC(s).
–
Any (optional) distributed route processors (DRPs) that are head of a logical router must also
be connected to both 22-Port SCGE cards.
–
For instructions on how to cable the 22-port SCGE cards, see the Cisco CRS-1 Carrier Routing
System Multishelf System Interconnection and Cabling Guide.
22-Port SCGE
SC0
LCC0
LCC1
RP Cntl Eth0 - SC Links
RP Cntl Eth1 - SC Links
Mesh Cabling Link
22-Port SCGE
SC1
RP0
RP0
RP1
RP1
191317
FCC0