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Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide
OL-28417-02
Troubleshooting the Cisco IOS XR Software
Interfaces Not Coming Up
Step 6 If the interface state is still displayed as “Down”, verify that the physical cable connections are correctly
installed. The following message indicates that the interface has either a bad connection or no
connection:
LC/0/0/1:Sep 29 15:31:12.921 : plim_4p_oc192[183]: %SONET-4-
ALARM : SONET0_1_1_0: SLOS
Step 7 Verify again that the interface is up by entering the show ipv4 interface brief command:
RP/0/RSP0/CPU0:router# show ipv4 interface brief
Interface IP-Address Status Protocol
gi0/1/0/0 unassigned Shutdown Down
gi0/1/0/1 unassigned Shutdown Down
gi0/1/0/2 unassigned Shutdown Down
gi0/1/0/3 unassigned Shutdown Down
gi0/1/0/4 unassigned Shutdown Down
gi0/1/0/5 unassigned Shutdown Down
gi0/1/0/6 unassigned Shutdown Down
gi0/1/0/7 unassigned Shutdown Down
gi0/1/0/8 unassigned Shutdown Down
gi0/1/0/9 unassigned Shutdown Down
gi0/1/0/10 unassigned Shutdown Down
gi0/1/0/11 unassigned Shutdown Down
gi0/1/0/12 unassigned Shutdown Down
gi0/1/0/13 unassigned Shutdown Down
gi0/1/0/14 unassigned Shutdown Down
gi0/1/0/15 unassigned Shutdown Down
gi0/2/0/0 10.10.1.101 Up Up
gi0/2/0/1 10.1.1.1 Up Up
gi0/2/0/2 10.1.1.2 Up Up
gi0/2/0/3 unassigned Shutdown Down
TenGigE0/3/0/0 unassigned Shutdown Down
TenGigE0/3/0/2 unassigned Shutdown Down
MgmtEth0/RSP0/CPU0/0 unassigned Shutdown Down
Step 8 Repeat these steps for every interface, until every interface shows both Status and Protocol as “Up.”
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