Solved: Basic WIC 1DSU T1 problem

n.elliott · ‎10-14-2011

I have just set up a home lab with 4 2600 routers and 2 2950 switches. All the routers have 1dsu wic cards in at least one slot with most having both slots with them.

My problem is now that I made a T1 crossover cable to practice the WAN routing for my ICDN1 and 2 test, both router A and router B won't connect. They show the output

From router B

Interface	IP-Address	OK?	Method	Status	Protocol
FastEthernet0/0	192.168.0.80	YES	NVRAM	up	up
Serial0/0	192.168.2.2	YES	NVRAM	down	down

Router A is similar except the ip address I am using for serial 0/0 is 192.168.2.1

The cross-over cable I made using the following instructions

http://sh-run.com/2009/06/04/how-to-make-a-t1-crossover-cable/

and I do have experience making cables

The error I am getting appears to point to the cable not being any good which would mean I made it wrong.

my relevant show running-config is as follows:

RouterA

interface Serial0/0

ip address 192.168.2.1 255.255.255.0

fair-queue

service-module t1 clock source internal

service-module t1 timeslots 1-24

RouterB

interface Serial0/0

ip address 192.168.2.2 255.255.255.0

fair-queue

service-module t1 clock source internal

service-module t1 timeslots 1-24

Both are using HDLC....I tried PPP but it also didn't work for me.

I know that subnet mask has more hosts than I need for P2P but I just am trying to get it up right now to verify it works.

What am I overlooking? Can anyone point me in the right direction?

Reza Sharifi · ‎10-14-2011

yes, I think you need these commands

service-module t1 clock source internal
service-module t1 timeslots 1-24 speed 64

It seems since it is t1 interface you don't need clocking

here is more info

https://supportforums.cisco.com/thread/2028581

HTH

View solution in original post

Reza Sharifi · ‎10-14-2011

You need to clock the DCE side if the serial cable

clock rate 64000

also since this is t1 you don't need these commands:

service-module t1 clock source internal

service-module t1 timeslots 1-24

HTH

n.elliott · ‎10-14-2011

every time I try to set the clock rate on one of the routers it doesn't take. I checked the running-config after i put it in and notice it is not present. Also being this has rj-45 ends I don't have a DCE side hardware wise. Is there a command to set one side as the DCE that I am missing?

here is the exact command I use to set the clock in case I am screwing up there.

RouterB(config)#interface serial 0/0

RouterB(config-if)#clock rate 64000

RouterB#show running-config

interface Serial0/0

ip address 192.168.2.2 255.255.255.0

fair-queue

I removed the service-module lines

Reza Sharifi · ‎10-14-2011

"sh contro" will show you the DCE or DTE side

n.elliott · ‎10-14-2011

I don't see it in there either :-(. Here is the output from both routers of that command. I have truncated it to just the serial interface. Apparently this is becoming quite the t/s problem.

From RouterA:

Interface Serial0/0
Hardware is PowerQUICC MPC860 with Integrated FT1 CSU/DSU module
 TX and RX clocks detected.
idb at 0x82F269CC, driver data structure at 0x82F2E0F0
SCC Registers:
General [GSMR]=0x2:0x00000030, Protocol-specific [PSMR]=0x8
Events [SCCE]=0x0300, Mask [SCCM]=0x001F, Status [SCCS]=0x03
Transmit on Demand [TODR]=0x0, Data Sync [DSR]=0x7E7E
Interrupt Registers:
Config [CICR]=0x00367F80, Pending [CIPR]=0x00008000
Mask   [CIMR]=0x40204000, In-srv  [CISR]=0x00000000
Command register [CR]=0x600
Port A [PADIR]=0x0000, [PAPAR]=0xFFFF
       [PAODR]=0x0000, [PADAT]=0xEEFC
Port B [PBDIR]=0x0180F, [PBPAR]=0x0000E
       [PBODR]=0x00000, [PBDAT]=0x3E77D
Port C [PCDIR]=0x00C, [PCPAR]=0x000
       [PCSO]=0x020,  [PCDAT]=0xFF2, [PCINT]=0x00F
Receive Ring
        rmd(680126B0): status 9000 length 60C address 7CEAD24
        rmd(680126B8): status 9000 length 60C address 7CEA6A4
        rmd(680126C0): status 9000 length 60C address 7CEA024
        rmd(680126C8): status 9000 length 60C address 7D09764
        rmd(680126D0): status 9000 length 60C address 7D090E4
        rmd(680126D8): status 9000 length 60C address 7D08A64
        rmd(680126E0): status 9000 length 60C address 7D083E4
        rmd(680126E8): status 9000 length 60C address 7D07D64
        rmd(680126F0): status 9000 length 60C address 7D076E4
        rmd(680126F8): status 9000 length 60C address 7D07064
        rmd(68012700): status 9000 length 60C address 7D069E4
        rmd(68012708): status 9000 length 60C address 7D06364
        rmd(68012710): status 9000 length 60C address 7D05CE4
        rmd(68012718): status 9000 length 60C address 7D05664
        rmd(68012720): status 9000 length 60C address 7D04FE4
        rmd(68012728): status 9000 length 60C address 7D04964
        rmd(68012730): status 9000 length 60C address 7D042E4
        rmd(68012738): status 9000 length 60C address 7D03C64
        rmd(68012740): status 9000 length 60C address 7D035E4
        rmd(68012748): status 9000 length 60C address 7D02F64
        rmd(68012750): status 9000 length 60C address 7D028E4
        rmd(68012758): status 9000 length 60C address 7D02264
        rmd(68012760): status 9000 length 60C address 7D01BE4
        rmd(68012768): status B000 length 60C address 7D01564
Transmit Ring
Head: 0, tail: 0
        tmd(68012770): status 0 length 0 address 0
        tmd(68012778): status 0 length 0 address 0
        tmd(68012780): status 0 length 0 address 0
        tmd(68012788): status 0 length 0 address 0
        tmd(68012790): status 0 length 0 address 0
        tmd(68012798): status 0 length 0 address 0
        tmd(680127A0): status 0 length 0 address 0
        tmd(680127A8): status 0 length 0 address 0
        tmd(680127B0): status 0 length 0 address 0
        tmd(680127B8): status 0 length 0 address 0
        tmd(680127C0): status 0 length 0 address 0
        tmd(680127C8): status 0 length 0 address 0
        tmd(680127D0): status 0 length 0 address 0
        tmd(680127D8): status 0 length 0 address 0
        tmd(680127E0): status 0 length 0 address 0
        tmd(680127E8): status 2000 length 0 address 0 Wrap.


tx_limited=1(2)


SCC GENERAL PARAMETER RAM (at 0x68013C00)
Rx BD Base [RBASE]=0x26B0, Fn Code [RFCR]=0x18
Tx BD Base [TBASE]=0x2770, Fn Code [TFCR]=0x18
Max Rx Buff Len [MRBLR]=1548
Rx State [RSTATE]=0x0, BD Ptr [RBPTR]=0x26B0
Tx State [TSTATE]=0x0, BD Ptr [TBPTR]=0x2770


SCC HDLC PARAMETER RAM (at 0x68013C38)
CRC Preset [C_PRES]=0xFFFF, Mask [C_MASK]=0xF0B8
Errors: CRC [CRCEC]=0, Aborts [ABTSC]=0, Discards [DISFC]=0
Nonmatch Addr Cntr [NMARC]=0
Retry Count [RETRC]=0
Max Frame Length [MFLR]=1610
Rx Int Threshold [RFTHR]=0, Frame Cnt [RFCNT]=0
User-defined Address 0000/0000/0000/0000
User-defined Address Mask 0x0000




buffer size 1524


PowerQUICC SCC specific errors:
0 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
0 transmitter underruns
0 transmitter CTS losts
0 aborted short frames

And from RouterB

Interface Serial0/0
Hardware is PowerQUICC MPC860 with Integrated FT1 CSU/DSU module
 TX and RX clocks detected.
idb at 0x8107F344, driver data structure at 0x81087740
SCC Registers:
General [GSMR]=0x2:0x00000030, Protocol-specific [PSMR]=0x8
Events [SCCE]=0x0300, Mask [SCCM]=0x001F, Status [SCCS]=0x03
Transmit on Demand [TODR]=0x0, Data Sync [DSR]=0x7E7E
Interrupt Registers:
Config [CICR]=0x00367F80, Pending [CIPR]=0x00008800
Mask   [CIMR]=0x60204400, In-srv  [CISR]=0x00000000
Command register [CR]=0x600
Port A [PADIR]=0x0000, [PAPAR]=0xFFFF
       [PAODR]=0x0000, [PADAT]=0xAAF2
Port B [PBDIR]=0x03A0F, [PBPAR]=0x0000E
       [PBODR]=0x00000, [PBDAT]=0x3C55D
Port C [PCDIR]=0x00C, [PCPAR]=0x000
       [PCSO]=0x0A0,  [PCDAT]=0xFF0, [PCINT]=0x00F
Receive Ring
        rmd(68012830): status 9000 length 60C address 3B6DCA4
        rmd(68012838): status 9000 length 60C address 3B6D624
        rmd(68012840): status 9000 length 60C address 3B6CFA4
        rmd(68012848): status 9000 length 60C address 3B6C924
        rmd(68012850): status 9000 length 60C address 3B6C2A4
        rmd(68012858): status 9000 length 60C address 3B6BC24
        rmd(68012860): status 9000 length 60C address 3B6B5A4
        rmd(68012868): status 9000 length 60C address 3B6AF24
        rmd(68012870): status 9000 length 60C address 3B6A8A4
        rmd(68012878): status 9000 length 60C address 3B6A224
        rmd(68012880): status 9000 length 60C address 3B69BA4
        rmd(68012888): status 9000 length 60C address 3B69524
        rmd(68012890): status 9000 length 60C address 3B68EA4
        rmd(68012898): status 9000 length 60C address 3B68824
        rmd(680128A0): status 9000 length 60C address 3B681A4
        rmd(680128A8): status B000 length 60C address 3B67B24
Transmit Ring
        tmd(680128B0): status 0 length 0 address 0
        tmd(680128B8): status 0 length 0 address 0
        tmd(680128C0): status 0 length 0 address 0
        tmd(680128C8): status 0 length 0 address 0
        tmd(680128D0): status 0 length 0 address 0
        tmd(680128D8): status 0 length 0 address 0
        tmd(680128E0): status 0 length 0 address 0
        tmd(680128E8): status 0 length 0 address 0
        tmd(680128F0): status 0 length 0 address 0
        tmd(680128F8): status 0 length 0 address 0
        tmd(68012900): status 0 length 0 address 0
        tmd(68012908): status 0 length 0 address 0
        tmd(68012910): status 0 length 0 address 0
        tmd(68012918): status 0 length 0 address 0
        tmd(68012920): status 0 length 0 address 0
        tmd(68012928): status 2000 length 0 address 0


tx_limited=1(2)


SCC GENERAL PARAMETER RAM (at 0x68013C00)
Rx BD Base [RBASE]=0x2830, Fn Code [RFCR]=0x18
Tx BD Base [TBASE]=0x28B0, Fn Code [TFCR]=0x18
Max Rx Buff Len [MRBLR]=1548
Rx State [RSTATE]=0x0, BD Ptr [RBPTR]=0x2830
Tx State [TSTATE]=0x0, BD Ptr [TBPTR]=0x28B0


SCC HDLC PARAMETER RAM (at 0x68013C38)
CRC Preset [C_PRES]=0xFFFF, Mask [C_MASK]=0xF0B8
Errors: CRC [CRCEC]=0, Aborts [ABTSC]=0, Discards [DISFC]=0
Nonmatch Addr Cntr [NMARC]=0
Retry Count [RETRC]=0
Max Frame Length [MFLR]=1608
Rx Int Threshold [RFTHR]=0, Frame Cnt [RFCNT]=0
User-defined Address 0000/0000/0000/0000
User-defined Address Mask 0x0000




buffer size 1524


PowerQUICC SCC specific errors:
0 input aborts on receiving flag sequence
0 throttles, 0 enables
0 overruns
0 transmitter underruns
0 transmitter CTS losts
0 aborted short frames

Reza Sharifi · ‎10-14-2011

yes, I think you need these commands

service-module t1 clock source internal
service-module t1 timeslots 1-24 speed 64

It seems since it is t1 interface you don't need clocking

here is more info

https://supportforums.cisco.com/thread/2028581

HTH

vmiller · ‎10-14-2011

Rezas got it.

one side clocks internal, the other side clocks line

DCE DTE

n.elliott · ‎10-14-2011

Thanks that got it. I also needed to rebuild my cable because I had a pin not quite mated up with the wire. Plugged in the new cable with the config you gave and saw the carrier detection light come on for the first time. Thanks!

Reza Sharifi · ‎10-14-2011

Glad to help. Good luck with your CCNA!