Cisco 5428 - SN Router, Руководство по установке

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4-3
Cisco AS5400 Universal Gateway Chassis Installation Guide
OL-2847-02 0A
Chapter 4 Troubleshooting
Mixing WAN DFCs
Mixing WAN DFCs
The Cisco AS5400 supports only one type of WAN DFC at a time. The DFCs that can be installed at one
time are:
• Four T1 DFCs or
•
Four E1 DFCs or
• One CT3 DFC and three T1 DFCs
The Cisco AS5400 software recognizes DFCs in the order of the slots they are in. For example, a DFC
in slot 2 is recognized before a DFC in slot 3. The system recognizes if there is a mix of WAN DFCs
during both power up and OIR:
•
During power up, the first WAN DFC recognized by the system is the only type brought up.
•
If there are two or more WAN DFCs of the same type and one is hot-swapped with another of a
different type, the new one is not recognized.
In both situations, an error message appears on the console that is similar to the following example:
00:01:12:%CARRIER-2-T1_E1_MIX:Cannot mix T1 and E1 8PRI DFC cards in chassis, do not power
up invalid card in slot 7
To see what types of DFCs are in the chassis, use the show chassis slot command in privileged EXEC
mode:
Router# show chassis slot
Slot 1:
DFC type is AS5400 T1 8 PRI DFC
OIR events:
Number of insertions = 0, Number of removals = 0
DFC State is DFC_S_OPERATIONAL
Slot 2:
Carrier Slot is Empty
Slot 3:
Carrier Slot is Empty
Slot 4:
DFC type is AS5400 NP108 DFC
Remote Alarm (RA) On Indicates a T1 alarm condition
encountered by software.
Off Remains off when operating condition
is normal.
Local Alarm (LA) On Indicates a T1 alarm condition
encountered by software for a
particular port.
Off Remains off when operating condition
is normal.
Table 4-1 Chassis LEDs (continued)
LED State Description