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2 Cisco 1600 series router HELP on serial interfaces...!!!!

I have 1 Cisco 1601 R and 1 Cisco 1601, both serial interface are connect with a DB-60 DTE/DCE cable.

THE SERIAL INTERFACE ON DCE GOES DOWN AFTER IT COMES UP. I GET "UP - DOWN"

THE SERIAL INTERFACE ON DTE GOES UP DOWN UP DOWN UP DOWN. I GET "UP - DOWN".

I CANT GET IT UP AND UP ON BOTH ROUTES. WHAT I'M I DOING WRONG. HELP!

------------------------------------------------------------------------------------------------------------------------------ This is router 1 with the DCE cable.

------------------------------------------------------------------------------------------------------------------------------ Serial0 is up, line protocol is down Hardware is QUICC Serial Internet address is 10.0.0.1/8 MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load

1/255 Encapsulation HDLC, loopback not set, keepalive set (10 sec) Last input never, output 00:00:04, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0 (size/max/drops); Total output drops: 0 Queueing strategy: weighted fair Output queue: 0/64/0 (size/threshold/drops) Conversations 0/4 (active/max active) Reserved Conversations 0/0 (allocated/max allocated) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 343 packets output, 21246 bytes, 0 underruns 0 output errors, 0 collisions, 121 interface resets 0 output buffer failures, 0 output buffers swapped out 165 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up

Interface IP-Address OK? Method Status Protocol Ethernet0 172.1.1.121 YES NVRAM up up Loopback0 192.168.1.1 YES NVRAM up up Serial0 10.0.0.1 YES manual up down

------------------------------------------------------------------------------------------------------------------------------ ROUTER 2 WITH DTE CABLE.

------------------------------------------------------------------------------------------------------------------------------ Serial0 is up, line protocol is down Hardware is QUICC Serial Internet address is 10.0.0.2/8 MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load

1/255 Encapsulation HDLC, loopback not set, keepalive set (10 sec) Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0 (size/max/drops); Total output drops: 0 Queueing strategy: weighted fair Output queue: 0/64/0 (size/threshold/drops) Conversations 0/1 (active/max active) Reserved Conversations 0/0 (allocated/max allocated) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 1 packets/sec 191 packets input, 16282 bytes, 0 no buffer Received 71 broadcasts, 0 runts, 0 giants, 0 throttles 2 input errors, 0 CRC, 1 frame, 0 overrun, 0 ignored, 0 abort 548 packets output, 31130 bytes, 0 underruns 0 output errors, 0 collisions, 90 interface resets 0 output buffer failures, 0 output buffers swapped out 237 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up

Interface IP-Address OK? Method Status Protocol Ethernet0 172.1.1.131 YES NVRAM administratively down down Loopback0 192.168.1.151 YES NVRAM up up Serial0 10.0.0.2 YES NVRAM up down

Reply to
gujumaxima
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Also, on the DCE router - i have tried all clock rates - 1200 - 64000 and this happens to all rates.

Reply to
gujumaxima

use encapsulation hdlc use clock rate ie 64000 (must be on the dce router) if fails either cable or one of the ports is faulty

Reply to
tayfun

Tired that, but failed, same results. The cable is new but the routers are used of course both off ebay. And they never worked so could be the hardware. anything else I can try ??

Reply to
gujumaxima

Just a thought - make sure you're plugging the cables in the right way up. I thought I had bought a dead router on eBay until I realised that I was plugging the cable in upside down.

Reply to
Mr Roflcopter

Post:

- A sample of some of the error messages.

- a "show ip int brief"

- a "show run" (manually remove any passwords).

Reply to
yamahasw40

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The interface resets and carrier transitions don't look good.

0 output errors, 0 collisions, 121 interface resets > 0 output buffer failures, 0 output buffers swapped out > 165 carrier transitions

0 output errors, 0 collisions, 90 interface resets > 0 output buffer failures, 0 output buffers swapped out > 237 carrier transitions

You should post the actual config. Also, just because the cable is new, doesn't mean it's good.

Dennis

Reply to
Dennis Willson

ok here's more info...

Router 1 DCE -

----------------------------------------------- Current configuration: ! version 11.1 service udp-small-servers service tcp-small-servers ! hostname R1spyder ! enable secret 5 ******* enable password ****** ! ! interface Loopback0 ip address 192.168.1.1 255.255.255.0 ! interface Ethernet0 ip address 172.1.1.121 255.255.255.128 ! interface Serial0 ip address 172.1.2.122 255.255.255.0 clockrate 64000 ! router eigrp 2 network 10.0.0.0 network 172.0.0.0 network 192.0.0.0 ! router ospf 2 network 10.0.0.0 0.255.255.255 area 2 network 172.0.0.0 0.255.255.255 area 2 ! router rip version 2 network 10.0.0.0 network 172.0.0.0 network 172.1.0.0 ! router igrp 2 network 10.0.0.0 network 172.0.0.0 ! ip classless ! line con 0 logging synchronous line vty 0 4 password ****** login ! end

--------------------------------- R1spyder#sh ip int brief Interface IP-Address OK? Method Status Protocol Ethernet0 172.1.1.121 YES NVRAM up up Loopback0 192.168.1.1 YES NVRAM up up Serial0 172.1.2.122 YES NVRAM up down

-------------------------------------- Router 2 DTE

-------------------------------------- R2spyder#sh run Building configuration...

Current configuration: ! version 11.2 service udp-small-servers service tcp-small-servers ! hostname R2spyder ! enable secret 5 ***** enable password ***** ! ! interface Loopback0 ip address 192.168.1.151 255.255.255.0 ! interface Ethernet0 ip address 172.1.1.131 255.255.255.128 shutdown ! interface Serial0 ip address 172.1.2.123 255.255.255.0 ! router eigrp 2 network 10.0.0.0 network 172.0.0.0 network 192.0.0.0 ! router rip version 2 network 10.0.0.0 network 172.0.0.0 network 192.0.0.0 ! router igrp 2 network 10.0.0.0 network 172.0.0.0 network 192.0.0.0 ! ip classless ! line con 0 logging synchronous line vty 0 4 password ************** login --More-- %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state to down ! end

R2spyder#sh ip int brief Interface IP-Address OK? Method Status Protocol Ethernet0 172.1.1.131 YES NVRAM administratively down down Loopback0 192.168.1.151 YES NVRAM up up Serial0 172.1.2.123 YES NVRAM up down

I think its Router 2 that is incorrect settings or hardware issue.

Reply to
gujumaxima

Have a look on the output of show controller serial 0 on router 2 to see if it is picking up the clock rate correctly from router 1.

BL

Reply to
Buzz Lightbeer

this is router 2, and I dont see clockrate (DTE)

Router#sh controllers serial 0

QUICC Serial unit 0 idb at 0x2083EDC, driver data structure at 0x208597C SCC Registers: General [GSMR]=0x2:0x00000030, Protocol-specific [PSMR]=0x0 Events [SCCE]=0x0000, Mask [SCCM]=0x001F, Status [SCCS]=0x0006 Transmit on Demand [TODR]=0x0, Data Sync [DSR]=0x7E7E Interrupt Registers: Config [CICR]=0x00368461, Pending [CIPR]=0x00000004 Mask [CIMR]=0x88000012, In-srv [CISR]=0x00000000 Command register [CR]=0x6C0 Port A [PADIR]=0x0000, [PAPAR]=0xCCC3 [PAODR]=0x0000, [PADAT]=0xF7FE Port B [PBDIR]=0x00F13E, [PBPAR]=0x0010CE [PBODR]=0x000000, [PBDAT]=0x0348DD Port C [PCDIR]=0x000A, [PCPAR]=0x0000 [PCSO]=0x0830, [PCDAT]=0x03C4, [PCINT]=0x0000 DTE V.35 serial cable attached.

SCC GENERAL PARAMETER RAM (at 0xFF00F00) Rx BD Base [RBASE]=0x540, Fn Code [RFCR]=0x18 Tx BD Base [TBASE]=0x580, Fn Code [TFCR]=0x18 Max Rx Buff Len [MRBLR]=1524 Rx State [RSTATE]=0x18008240, BD Ptr [RBPTR]=0x578 Tx State [TSTATE]=0x18000348, BD Ptr [TBPTR]=0x588

SCC HDLC PARAMETER RAM (at 0xFF00F38) 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]=1524 Rx Int Threshold [RFTHR]=0, Frame Cnt [RFCNT]=65529 User-defined Address 0000/0000/0000/0000 User-defined Address Mask 0x0000

buffer size 1524 BRGC1=101B0, BRGC2=0, BRGC3=0, BRGC4=0 modem_signal_addr FF01566 MASK: DSR=1, DTR=2,RTS=8.CTS=400,DCD=800 txbrgc=FF015FC, rxbrgc=FF015FC BRG [DTE]: rx_sicr_clk=7, tx_sicr_clk=6 BRG [DCE]: rx_sicr_clk=7, tx_sicr_clk=3 CLK SRC: sync=4000, async=4000 RX ring with 8 entries at 0xFF00540, Buffer size 1524 Rxhead = 0xFF00578 (7), Rxp = 0x20859B4 (7)

00 pak=0x20CA470 buf=0x21ABD2C status=9000 pak_size=0 01 pak=0x20CA640 buf=0x21ACA9C status=9000 pak_size=0 02 pak=0x208604C buf=0x219179C status=9000 pak_size=0 03 pak=0x20CA9E0 buf=0x2192BC4 status=9000 pak_size=0 04 pak=0x20CABB0 buf=0x2193934 status=9000 pak_size=0 05 pak=0x2085E7C buf=0x21AC3E4 status=9000 pak_size=0 06 pak=0x20863EC buf=0x219327C status=9000 pak_size=0 07 pak=0x20CA810 buf=0x2191E54 status=B000 pak_size=0

TX ring with 4 entries at 0xFF00580, tx_count = 0 tx_head = 0xFF00588 (1), head_txp = 0x20859F8 (1) tx_tail = 0xFF00588 (1), tail_txp = 0x20859F8 (1)

00 pak=0x0000000 buf=0x0000000 status=0000 pak_size=0 01 pak=0x0000000 buf=0x0000000 status=0000 pak_size=0 02 pak=0x0000000 buf=0x0000000 status=0000 pak_size=0 03 pak=0x0000000 buf=0x0000000 status=2000 pak_size=0 QUICC SCC specific errors: 0 input aborts on receiving flag sequence 0 throttles, 0 enables 0 overruns 0 transmitter underruns 0 transmitter CTS losts
Reply to
gujumaxima

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