Accessing The Silkworm 12000 Switches - Brocade Communications Systems SilkWorm 12000 Design, Deployment And Management Manual

2
SilkWorm 12000 Architecture and What Is New
The dual CP card model and the concept of logical switches is a change from past SilkWorm switch
implementations. The SilkWorm 2000 and 3000 families of 8-port and 16-port switches all had a static
relationship between the processor and the switch. Now the switch and the processor are de-coupled.
One implication of this model is that instead of downloading firmware to a switch, it is necessary to
download firmware to a CP card.
Note:

Accessing the SilkWorm 12000 Switches

When accessing SilkWorm 12000 switches, it is possible to access either switch by its respective IP
address or by using a serial connection to the active CP card. It is possible to access a CP card by telnet
using the respective CP card's IP address or by connecting a serial cable to the CP card. Access to the CP
card should be limited to: installation purposes, setting a switch's IP address, doing firmware
maintenance (i.e., downloads), or for diagnostic purposes.
When telnetting to an inactive CP card, the user is entered into a limited access environment where no
access to a switch is possible. When a user accesses an active CP card, that user will have access to the
full Fabric OS environment. To determine a CP card state, whether inactive or active, use the command
haShow (see Figure 2-3). When telnetting to a SilkWorm 12000 switch, the user will encounter a login
prompt from the active CP card. This may seem confusing, since the destination is a switch and not the
CP card; however, once logged in, the user is then placed into the target switch environment, as shown in
Figure 2-4.
Note:
sun1# telnet sw0_156_22
Trying 192.168.156.22...
Connected to sw0_156_22.
Escape character is '^]'.
Fabric OS (cp1)
cp1 login: admin
Password:
sw0_156_22:admin> hashow
Local CP (Slot 6, CP1): Active
Remote CP (Slot 5, CP0): Standby
HA Enabled, Heartbeat Up
Figure 2-3
sun1# telnet sw1_156_23
Trying 192.168.156.23...
Connected to sw1_156_23.
Escape character is '^]'.
Fabric OS (cp1)
cp1 login: admin
Password:
sw1_156_23:admin>
Figure 2-4
2-4
The time it takes to activate the standby CP, when a failover occurs, will be considerably less
when using Fabric OS 4.1 and greater.
While it is possible to access the switches via the active CP card, either using an Ethernet address
or serial connection, primary access to the switches should be via Ethernet to the switch and not
the CP card.
Determining a CP Card State Using the haShow Command. CP1 is Active.
SilkWorm 12000 Log In
Publication Number 53-0000251-02