Allied Telesis AT-SBx908 Installation Manual page 193

Table 21. Hot-swapping Guidelines for XEM2 Line Cards (Continued)
XEM2 Line Card
AT-XEM2-1CQ
(Continued)
Here are additional hot-swapping guidelines:
 Allied Telesis recommends saving a backup copy of the switch's
configuration file before removing or replacing XEM2 Line Cards.
For instructions, refer to the Software Reference for SwitchBlade
x908 GEN2 Switches.
 When hot-swapped, XEM2 Line Cards might require up to thirty
seconds to become fully operational.
 Remember to save the switch's configuration with the WRITE FILE
command after issuing the SWITCH BAY PROVISION command
to provision a line card slot for a card.

AlliedWare Plus alerts you with critical log messages on the
console and in the buffered log if you need to reset the switch after
hot-swapping line cards. (The buffered log is displayed with the
SHOW LOG command.) Here are examples of the messages. The
first example is from replacing an AT-XEM2-1CQ Card with an AT-
XEM2-12XT Card:
Console Message:
23:22:28 awplus HSL[996]: Stack member 1 must be
rebooted to configure for AT-XEM2-12XT, disabling
XEM.
Buffered log:
2018 May 15 23:22:28 local6.crit awplus HSL[996]:
Stack member 1 must be rebooted to configure for
AT-XEM2-12XT, disabling XEM.
AT-SBx908 GEN2 Installation Guide for Virtual Chassis Stacking
Description
You must reset the switch after hot-
swapping the card under these conditions:
- Installing the AT-XEM2-1CQ Card in a
line card slot that was not provisioned
for it.
- Replacing one of the other cards with
the AT-XEM2-1CQ Card.
- Replacing the AT-XEM2-1CQ Card with
one of the other cards.
- Provisioning a line card slot for the AT-
XEM2-1CQ Card with the SWITCH BAY
PROVISION command. The provision is
not implemented until the switch is
reset.
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