Cisco SCE8000 GBE, Руководство по установке

Страница: 13 / 50

13
The following general guidelines are applicable during the process of designing the cabling scheme:
•
Because there are two links per Cisco SCE 8000 platform, the minimum number of platforms required is half the number
of links used.
• Each link corresponds to one port on the EtherChannel on the Cisco 7600 Series router. Each EtherChannel supports a
maximum of eight ports. Therefore, if all eight EtherChannel ports are configured, four Cisco SCE 8000 platforms are
required.
• For N+1 redundancy, two ports (connected to the standby platform) must be configured as standby ports on both
EtherChannels. Therefore, for N+1 redundancy, one router and five Cisco SCE 8000 platforms will be used to support eight
links.
•
If two Cisco 7600 Series routers are used (for network redundancy), one link on each Cisco SCE 8000 platform is connected
to each router. This topology requires twice the number of Cisco SCE 8000 platforms, one platform for each link.
–
A minimum of eight Cisco SCE 8000 platforms are required to support eight ports.
–
For N+1 redundancy, nine Cisco SCE 8000 platforms are used to support eight active links.
When cabling to the EtherChannel, follow these guidelines:
• The Cisco SCE platform ports must be connected to the EtherChannel ports in the same order on both sides.
• The EtherChannel ports must be sorted in ascending order by their physical interface numbers.
•
In a topology with two Cisco 7600 Series routers, the order of connection to the EtherChannel ports must be the same on
both routers. For both routers to send the traffic of a given subscriber to the same Cisco SCE platform, the Cisco SCE
platforms must be connected to both routers in the same order (one Cisco SCE platform connected to the first link on both
routers, another Cisco SCE platform connected to the second link on both routers, and so on).
Installing the Subscriber Manager
This section describes how to install Subscriber Manager, Release 5.2.x, on a computer running Red Hat Linux.
For more information, see the Cisco SCMS Subscriber Manager User Guide .
To install Subscriber Manager, Release 5.2.x, complete these steps:
Step 1
Use FTP to load the distribution files to the Subscriber Manager and extract them.
Step 2 Determine the system memory settings.
Set the system memory configuration requirements according to the maximum number of subscribers. See the
“Installation Procedure” section in the “Installation and Upgrading” chapter of the
Cisco Service Control Management
Suite Subscriber Manager User Guide .
Step 3 Configure the shared memory settings.
TimesTen requires that certain changes be made in the OS kernel configuration file:
•
For Linux, modify the /etc/sysctl.conf file.
These changes increase the shared memory and semaphore resources on the machine from their defaults. See the
“Installation Procedure” section in the “Installation and Upgrading” chapter of the
Cisco Service Control Management
Suite Subscriber Manager User Guide .