Symptom

When serial module (NIM-4T) is installed in C8300-2N2S-6T C-SM-NIM-ADPT slot, it cannot ping to peer router and self ping fail customer version: 17.6.5

Conditions

router1 & router2: Serial module (NIM-4T) installed in slot 0 or 1 of C8300-2N2S-6T via slot1 SM NIM adapter (C-SM-NIM-ADPT). router1 slot0 connect to peer router2 solt0 router1 slot1 connect to peer router2 solt0 slot0 ping to solt0 can fine, slot1 cannot ping to slot0

Workaround

Further Problem Description

version 17.6.5 & 17.9.3a & 17.9.4 Always showing following UPDOWN log, and ping fail *Oct 13 08:21:53.934: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0/0, changed state to down *Oct 13 08:22:03.934: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0/0, changed state to up *Oct 13 08:22:17.396: %ENVIRONMENTAL-1-ALERT: V: PEM Out, Location: P1, State: Warning, Reading: 0 mV *Oct 13 08:22:17.403: %ENVIRONMENTAL-1-ALERT: RPM: fan0, Location: P1, State: Warning, Reading: 0 RPM *Oct 13 08:22:23.934: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0/0, changed state to down *Oct 13 08:22:33.934: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0/0, changed state to up *Oct 13 08:22:53.935: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0/0, changed state to down -------------------- Router 1 (C8300-2N2S-6T) -------------------- show ip int b: Serial0/1/0 10.0.10.1 YES NVRAM up up Serial0/1/1 unassigned YES NVRAM administratively down down Serial0/1/2 unassigned YES NVRAM administratively down down Serial0/1/3 unassigned YES NVRAM administratively down down Serial1/0/0 10.0.11.1 YES manual up up show platform: Chassis type: C8300-2N2S-6T Slot Type State Insert time (ago) --------- ------------------- --------------------- ----------------- 0 C8300-2N2S-6T ok 5d01h 0/0 4x1G-2xSFP ok 5d01h 0/1 NIM-4T ok 5d01h 1 C-SM-NIM-ADPT ok 5d01h 1/0 NIM-4T ok 5d01h 2 C8300-2N2S-6T ok 5d01h R0 C8300-2N2S-6T ok, active 5d01h F0 C8300-2N2S-6T ok, active 5d01h P0 PWR-CC1-1000WAC ok 5d01h P1 Unknown fail, badinput 5d01h P2 C8300-FAN-2R ok 5d01h POE0 PWR-CC1-MOD-POE ok 5d01h POE1 PWR-CC1-MOD-POE ok 5d01h Slot CPLD Version Firmware Version --------- ------------------- --------------------------------------- 0 20061845 17.6(6.1r) 1 20061845 17.6(6.1r) 2 20061845 17.6(6.1r) R0 20061845 17.6(6.1r) F0 20061845 17.6(6.1r) Router#show run inter serial1/0/0 Building configuration... Current configuration : 65 bytes ! interface Serial1/0/0 ip address 10.0.11.1 255.255.255.0 end Router#ping 10.0.11.1 source 10.0.11.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.0.11.1, timeout is 2 seconds: Packet sent with a source address of 10.0.11.1 ..... Success rate is 0 percent (0/5)