[c-nsp] E3 Link between 12000 & 72000 VXR
gben
gben at oteglobe.net
Thu Mar 8 09:23:39 EST 2007
Hello All,
7200VXR router
------------------------------------------------------------------------
7200-FR_switch#sh running-config interface ser 3/0
Building configuration...
Current configuration : 156 bytes
!
interface Serial3/0
ip address 192.168.1.2 255.255.255.252
no ip directed-broadcast
load-interval 30
framing g751
scramble
dsu bandwidth 34010
end
7200-FR_switch#sh controllers ser 3/0
M2T-E3 pa: show controller:
PAS unit 8, subunit 0, f/w version 3-92, rev ID 0x2800001, version 3
idb = 0x6274D1B0, ds = 0x624DF61C, ssb=0x62556918
Clock mux=0x30, ucmd_ctrl=0x0, port_status=0x1
Serial config=0x8, line config=0x1B0202
maxdgram=4584, bufpool=128Kb, 256 particles
rxLOS inactive, rxLOF inactive, rxAIS inactive
txAIS inactive, rxRAI inactive, txRAI inactive
line state: up
cable type : E3 cable, received clockrate 34015923
base0 registers=0x3D800000, base1 registers=0x3D802000
mxt_ds=0x6276A0F4, rx ring entries=124, tx ring entries=254
statring=0x2003B400, statr shadow=0x62748034, stat_head=233
rxring=0x2003A820, rxr shadow=0x6274E2B4, rx_head=14
txring=0x20041940, txr shadow=0x62748C60, tx_head=251, tx_tail=251,
tx_count=0
throttled=0, enabled=0
halted=0, last halt reason=0
Microcode fatal errors=0
rx_no_eop_err=0, rx_no_stp_err=0, rx_no_eop_stp_err=0
rx_no_buf=0, rx_soft_overrun_err=0, dump_err= 0, bogus=0, mxt_flags=0x2C
tx_underrun_err=0, tx_soft_underrun_err=0, tx_limited=0(256)
tx_fullring=0, tx_started=11693, mxt_flush_count=0
rx_int_count=3822651, tx_int_count=11693
Framing is g751, Clock Source is Line, National Bit is 0
Bandwidth limit is 34010, DSU mode 0
Scrambling is enabled
Data in current interval (0 seconds elapsed):
0 Line Code Violations, 0 P-bit Coding Violation
0 C-bit Coding Violation
0 P-bit Err Secs, 0 P-bit Sev Err Secs
0 Sev Err Framing Secs, 0 Unavailable Secs
0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Sev Err Secs
No alarms detected.
7200-FR_switch#
----------------------------------------GSR
----------------------------------------------
athgsr04#sh running-config interface ser 1/1
Building configuration...
Current configuration : 126 bytes
!
interface Serial1/1
ip address 192.168.1.1 255.255.255.252
no ip directed-broadcast
scramble
clock source internal
end
athgsr04#sh contr
athgsr04#sh controllers ser 1/1
Interface Serial1/1 (E3 port 1)
hwidb = 0x11FE8220
ssb = 0xA0A6454, ds = 0x85ADBE0
Line state is up
rxLOS inactive, rxLOF inactive, rxAIS inactive
txAIS inactive, rxRAI inactive, txRAI inactive
Current configurable parameter settings:
Loopback is none,
Clock source is internal
DSU mode is cisco, DSU bandwidth limit is 34010
National bit is 0
Payload scrambling is enabled, CRC is 16
Bert pattern is disabled, Bert interval is 0
Transmitter delay is 0, Encapsulation is HDLC
Idle character is flags, Invert data is disabled
MTU is 4470
MIB information:
Data in current interval (274 seconds elapsed):
0 Line Code Violations,
0 P-bit Err Secs, 0 P-bit Sev Err Secs
0 Sev Err Framing Secs, 0 Unavailable Secs
0 Line Errored Secs
No alarms detected.
athgsr04#
Best Regards,
George
David Freedman wrote:
> Can you paste the interface configs of both sides?
>
>
>
> gben wrote:
>
>> Hello All,
>>
>> We try to connect a 7200VXR with a GSR through E3 circuit (Back-to-Back).
>> The E3 Serial interface is UP – UP but we can not ping each other.
>> The 2 routers establish CDP neighborship and if we enable ISIS the
>> routers can exchange LSAs and from routing view everything is OK.
>> It seems that for some strange reason the IP traffic can not pass over
>> the E3 interface.
>>
>> http://www.cisco.com/en/US/customer/products/sw/iosswrel/ps1829/products_feature_guide09186a0080209dfd.html
>>
>> According cisco: Enable scrambling before the data has gone through
>> subrate processing by using the before subrate processing option with
>> the scramble command. This configuration is necessary when connecting to
>> Cisco 7200 Router E3 port adapters.
>>
>> athgsr04(config)#interface Serial 1/1
>> athgsr04(config-if)#scr
>> athgsr04(config-if)#scramble ?
>> <cr>
>> The command “scramble before subrate” is missing.
>> athgsr04#ping 192.168.1.2
>> Type escape sequence to abort.
>> Sending 5, 100-byte ICMP Echos to 192.168.1.2, timeout is 2 seconds:
>> .....
>> Success rate is 0 percent (0/5)
>>
>> athgsr04#show interfaces ser 1/1
>> Serial1/1 is up, line protocol is up
>> Hardware is Packet over E3
>> Internet address is 192.168.1.1/30
>> MTU 4470 bytes, BW 34010 Kbit, DLY 200 usec, rely 255/255, load 1/255
>> Encapsulation HDLC, crc 16, loopback not set
>> Keepalive set (10 sec)
>> Last input 00:00:05, output 00:00:09, output hang never
>> Last clearing of "show interface" counters 01:03:12
>> Queueing strategy: fifo
>> Output queue 0/40, 0 drops; input queue 0/75, 0 drops
>> 5 minute input rate 0 bits/sec, 0 packets/sec
>> 5 minute output rate 0 bits/sec, 0 packets/sec
>> 442 packets input, 31020 bytes, 0 no buffer
>> Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
>> 0 parity
>> 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
>> 442 packets output, 30768 bytes, 0 underruns
>> 0 output errors, 0 applique, 1 interface resets
>> 0 output buffer failures, 0 output buffers swapped out
>> 0 carrier transitions
>> athgsr04#sh cdp neighbors serial 1/1
>> Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
>> S - Switch, H - Host, I - IGMP, r - Repeater
>>
>> Device ID Local Intrfce Holdtme Capability Platform Port ID
>> 7200-FR_switch Ser 1/1 128 R 7206VXR Ser 3/0
>> athgsr04#
>>
>> Any ideas? IOS issue ?
>>
>> Best Regards,
>> George
>>
>>
>>
>>
>
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--
Best Regards,
____________________________________
George Benekos
OTEGlobe S.A
Technology Division
24x7: +306974477577
Fax: +302103303524
e-mail : george.benekos at oteglobe.net
website : http://www.oteglobe.gr
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