| What exactly is an atm interface?I acquired a router, and the old configuration (before i wiped it) had :
!
interface ATM0/IMA0
no ip address
ip access-group 126 in
no atm ilmi-keepalive
!
interface ATM0/IMA0.1 point-to-point
ip address 209.159.50.229 255.255.255.192
ip virtual-reassembly
pvc 0/60
encapsulation aal5snap
!
!
interface ATM0/0/0
description TA3000 SLOT 27 PORT 3
no ip address
scrambling-payload
ima-group 0
no atm ilmi-keepalive
!
interface ATM0/0/1
description TA3000 SLOT 27 PORT 4
no ip address
scrambling-payload
ima-group 0
no atm ilmi-keepalive
!
I looked at the router (ISR) and theres only a dual T1 wic, 2 fe ports builtin, and no other slots. There's 3 empty and 1 nm that's empty, vpn module (inside). Is it that he removed the atm or is atm some kind of virtual thing?
Googling shows a bnc looking connector. making sure i'm not crazy. |
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 TomS_Git-r-donePremium,MVM
join:2002-07-19
Ireland
kudos:1 | Well, it could be any module which uses ATM at the data link layer. So this could be an ADSL or SHDSL module, among others.
Since it doesnt sound like the modules were installed when you received the router, its going to be hard to tell which modules they were/it was, and what it was used for. |
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nosx
join:2004-12-27
00000
kudos:5 | It looks like a network-module for Inverse-multiplexing over ATM (IMA). its the MLPPP or MLFR of ATM world for bundling T1s together. NM-4T1-IMA = »www.tnetus.com/Assets/image/NM-4T1-IMA_1.jpg |
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| reply to Lazaruss
That makes sense! It does have a wic card that can take 2 t1 interfaces, so i'm pretty sure it was used to bond 2 t1's together (if you can do that at the router level) or maybe just 2 seperate t1s or more for differ locations.
Thanks alot! |
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nosx
join:2004-12-27
00000
kudos:5 | On the ISRs, im pretty sure that normal serial interfaces on VWIC-2MFT-T1 can do ATM if there is an AIM-ATM card installed on the motherboard of the router. You might do a show diag and see if you have such an advanced integration module. |
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| reply to Lazaruss
Well if they removed it it makes sense. They probably did have bonded t1s. Here's what the router says (snippets of when booting)
*May 28 13:39:33.295: %ATM_AIM-6-STARTUP: SAR (MXT-5100) initializedsslinit fn
*May 28 13:39:36.491: %VPN_HW-6-INFO_LOC: Crypto engine: onboard 0 State changed to: Initialized
*May 28 13:39:36.491: %VPN_HW-6-INFO_LOC: Crypto engine: onboard 0 State changed to: Enabled
*May 28 13:39:37.423: %LINEPROTO-5-UPDOWN: Line protocol on Interface VoIP-Null0, changed state to up
*May 28 13:39:41.287: %CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is OFF
and show version
Internet#show ver
Cisco IOS Software, 2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 12.4(3d), RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Wed 19-Apr-06 09:18 by alnguyen
ROM: System Bootstrap, Version 12.4(1r) [hqluong 1r], RELEASE SOFTWARE (fc1)
Internet uptime is 3 minutes
System returned to ROM by power-on
System image file is "flash:c2800nm-advipservicesk9-mz.124-3d.bin"
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
export@cisco.com.
Cisco 2811 (revision 53.50) with 247808K/14336K bytes of memory.
Processor board ID FTX1026A6EF
2 FastEthernet interfaces
2 Channelized T1/PRI ports
1 Virtual Private Network (VPN) Module
1 ATM/Voice AIM
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
62720K bytes of ATA CompactFlash (Read/Write)
Configuration register is 0x2102
it seems to have a builtin vpn module, and as it says a voice aim. Does that mean it can do iphones or would I still need another nm/wic for that? The only physical ports include 2 fe 2 t1s. |
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nosx
join:2004-12-27
00000
kudos:5 | 1 ATM/Voice AIM -- may still have the ATM aim in it. "Show diag" should identify what card it is. |
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| apparently so....
Internet#show diag
Slot 0:
C2811 Motherboard with 2FE and integrated VPN Port adapter, 2 ports
Port adapter is analyzed
Port adapter insertion time unknown
Onboard VPN : v2.2.0
EEPROM contents at hardware discovery:
PCB Serial Number : FOC10241R5M
Hardware Revision : 1.0
Top Assy. Part Number : 800-26920-02
Board Revision : A0
Deviation Number : 0
Fab Version : 03
RMA Test History : 00
RMA Number : 0-0-0-0
RMA History : 00
Processor type : 87
Hardware date code : 20060617
Chassis Serial Number : FTX1026A6EF
Chassis MAC Address : 0018.1969.f260
MAC Address block size : 24
CLEI Code : COM3C00BRA
Product (FRU) Number : CISCO2811
Part Number : 73-10258-04
Version Identifier : V03
EEPROM format version 4
EEPROM contents (hex):
0x00: 04 FF C1 8B 46 4F 43 31 30 32 34 31 52 35 4D 40
0x10: 03 E7 41 01 00 C0 46 03 20 00 69 28 02 42 41 30
0x20: 88 00 00 00 00 02 03 03 00 81 00 00 00 00 04 00
0x30: 09 87 83 01 32 19 C9 C2 8B 46 54 58 31 30 32 36
0x40: 41 36 45 46 C3 06 00 18 19 69 F2 60 43 00 18 C6
0x50: 8A 43 4F 4D 33 43 30 30 42 52 41 CB 8F 43 49 53
0x60: 43 4F 32 38 31 31 20 20 20 20 20 20 82 49 28 12
0x70: 04 89 56 30 33 20 D9 02 40 C1 FF FF FF FF FF FF
WIC Slot 0:
T1 (2 port) Multi-Flex Trunk WAN daughter card
Hardware revision 1.0 Board revision B0
Serial number 35022829 Part number 800-04477-04
FRU Part Number VWIC-2MFT-T1=
Test history 0x0 RMA number 00-00-00
Connector type PCI
EEPROM format version 1
EEPROM contents (hex):
0x20: 01 22 01 00 02 16 67 ED 50 11 7D 04 00 00 00 00
0x30: 58 00 00 00 06 06 10 00 FF FF FF FF FF FF FF FF
AIM ATM: 0
ATM AIMAIM Module in slot: 0
Hardware Revision : 1.0
Top Assy. Part Number : 800-06558-06
Board Revision : A0
Deviation Number : 0
Fab Version : 07
PCB Serial Number : FOC10250UME
RMA Test History : 00
RMA Number : 0-0-0-0
RMA History : 00
Product (FRU) Number : AIM-ATM
Version Identifier : V01
CLEI Code : CNUIALRAAA
EEPROM format version 4
EEPROM contents (hex):
0x00: 04 FF 40 01 B0 41 01 00 C0 46 03 20 00 19 9E 06
0x10: 42 41 30 88 00 00 00 00 02 07 C1 8B 46 4F 43 31
0x20: 30 32 35 30 55 4D 45 03 00 81 00 00 00 00 04 00
0x30: CB 87 41 49 4D 2D 41 54 4D 89 56 30 31 20 C6 8A
0x40: 43 4E 55 49 41 4C 52 41 41 41 FF FF FF FF FF FF
0x50: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x60: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
0x70: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
so having this card inside... what does that allow me to do? so is aim really a builtin virtual thing? |
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nosx
join:2004-12-27
00000
kudos:5 | Its a daughter board bolted onto the motherboard of the router, should let you go under the T1 controller config and tell it "mode atm" for a serial interface on a VWIC. |
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| but isn't atm really old obsolete technology like x.25? I thought it was replaced with frame relay or something |
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nosx
join:2004-12-27
00000
kudos:5 | Nope, plenty of places still use ATM, including providers with large existing ATM infrastructure. There is something called CELL MODE MPLS that some carriers use internally over their ATM/SONET systems. ATM and frame relay are both great technology for WAN delivery requiring multiple PVCs or logical links over a single physical connection. Even with modern MPLS WAN connections, its not uncommon to see a frame or ATM delivery with multiple PVCs for data, voice, internet, and other. |
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