Operating instructions

104 Cisco Systems Intelligent Gigabit Ethernet Switch Module
See 5.3, “In-depth management path discussions” on page 55 for more details on why
this is important.
򐂰 Default Spanning Tree settings:
– spanning-tree mode rapid-pvst
Rapid-PVST implements 802.1w for quicker recovery from issues in a layer 2 network
without having to perform a lot of extra commands that were necessary prior to 802.1w
to achieve this same rapid recovery.
– no spanning-tree optimize bpdu transmission
– spanning-tree extend system-id
򐂰 A default user (the user name is USERID with a password of PASSW0RD, numeric zero
for O) is created:
– username USERID privilege 15 secret 5 $1$7/1C$.lbXvHc5lyBHDzAZ9WpfT0
The management VLAN IP address information is not lost during a write
erase
As a direct result of a feature being enabled on the Management Module (under I/O Modules
Advanced Setup), after a Cisco Systems IGESM is cleared (write erase/reload or through the
GUI), the BladeCenter Management Module will provide its currently saved IP information for
that Cisco Systems IGESM. This is to help ensure that the Cisco Systems IGESM can always
be accessed over from the Management Modules. This action (providing or not providing the
Cisco Systems IGESM its default address) can be partially controlled from the Management
Modules Web interface (see “Control of the IGESM IP address information” on page 237 for
details on enabling or disabling the feature called Preserve new IP configuration on all
resets).
Also, if you change this setting to disabled, it is assumed that you plan on managing the
IGESM via its own uplinks. See 5.3.5, “Considerations: Using the IGESM uplinks to manage
the IGESM” on page 61 for details on why this is the case.
The default Cisco Systems IGESM IP addressing provided by the Management Module for a
new BladeCenter is as follows:
򐂰 Switch bay 1: 192.168.70.127/24
򐂰 Switch bay 2: 192.168.70.128/24
򐂰 Switch bay 3: 192.168.70.129/24
򐂰 Switch bay 4: 192.168.70.130/24
Based on certain interactions within the BladeCenter, it is usually
not recommended to
change the management IP address directly on the Cisco Systems IGESM, but instead only
change it through the Management Module Web-based GUI.
In particular, changing the address through the CLI of the Cisco Systems IGESM to a
different address on the same subnet can lead to a condition where a duplicate IP address is
reported, even though there is not one. This is the result of the Management Module
responding to Address Resolution Protocol (ARP) requests coming from the internal Cisco
Systems IGESM ports for any address on its IP subnet. To prevent this condition, only change
the IP address of the Cisco Systems IGESM through the Management Module GUI. See
Appendix A, “Hints and tips” on page 227 for more information.
See 6.1.2, “Management Module network interface” on page 80 for information about using
the Management Module GUI.