Operating instructions

Appendix A. Hints and tips 231
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.70.126, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
The cause of this issue is related to the duplicate IP address message reported in Duplicate
IP address: part 1 (the Management Module responding to ARP requests for addresses on its
own internal subnet). The way to prevent this situation from occurring is to change only the IP
address of the management VLAN through the Management Module’s Web interface.
If this issue is already occurring:
򐂰 Resolution 1
The safest and preferred approach is to connect to the Management Module’s Web
interface, click Management under I/O Module tasks on the left side of the window, select
the bay that is experiencing the issue (bay 1 in our example), ensure that the IP address
shown for the Cisco Systems IGESM in bay 1 is set as desired (if not, change it to the
desired address), and click Save. This puts the IP addresses back in sync between the
Management Module and the Cisco Systems IGESM, and communications should be
restored. (In addition, the duplicate IP addresses messages will stop.)
򐂰 Resolution 2
The following steps also resolve the conflict but will disrupt traffic while the Cisco Systems
IGESM is rebooting. Set the IP address of the IGESM back to its original value, save the
configuration, and reload the Cisco Systems IGESM. The Cisco Systems IGESM and the
Management Module will be back in sync upon rebooting and coming back online.
Teaming software on a blade server forces an undesired action
The Broadcom software, known as the Broadcom Advance Control Suite (BACS), is used to
control NIC teaming on the blade servers. It has been noted that there are several selections
within this software that do not permit you to cancel or otherwise back out of a selection, and
appear to force you to perform an action you might not want to perform.
Two such examples are:
򐂰 Clicking Remove VLAN at a Team Configuration window
򐂰 Selecting Tools
→ Delete a team from the menu bar
In these cases, a window similar to the one shown in Figure 9-1 on page 232 opens for you to
specify a VLAN or a team to delete, and you will not be offered any obvious way to cancel the
operation. To abort these seemingly unabortable procedures, press the Esc key on the
keyboard.
If there is only one item in the list to delete (for example, only one VLAN or one team), the
BACS software simply deletes the item and goes back to the original window. If this deletion
was undesired, the only solution is to click Cancel on the main BASC window and exit the
BASC software without saving the changes. Of course, doing so will result in losing any other
changes you had already made since the last time you clicked the Apply or OK button.
Important: To reduce the likelihood of this issue occurring, only change the address of the
Cisco Systems IGESMs through the Management Modules Web-based interface, not
directly on the IGESMs themselves. An exception to this rule is if you have configured the
Management Module and IGESM to enable the IGESM to manage its own IP addressing
information. (See “Control of the IGESM IP address information” on page 237 for details.)