Cisco WAN :: Clock Slips On VWIC-2MFT In 2811
Apr 11, 2005
I have a 2811 that I'm in the process of turning-up to support a 4xT1 using VWIC-2MFT-T1's. The question is how to "correctly" set clocking on the MFT's.
As is typical of the 2MFT's, as soon as a 2nd T-1 on a VWIC-2MFT comes up, I start taking "Slip Sec"s on the 2nd T-1. I have tried different clock source combinations, including "clock source line primary", various "network-clock-participate" (or not) combinations, and about a dozen other stab-in-the-dark configurations. Before I started playing with it, the slips were consistently every 9 seconds. After playing with it, I got them to every 18 seconds. But there shouldn't be ANY. So the question is what SHOULD the correct timing configuration be on that platform?
The VWIC-2MFT-T1's are in slots 1 and 3, so the controllers involved are 0/1/0, 0/1/1, 0/3/0 and 0/3/1.
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Jan 13, 2013
I have checked and re-checked before buying and this card is evidently supported on the 1841 for 'data mode only' which is all I need. I have 3 T1s in Multilink mode and I want to use 2 of these cards (and 3 of the 4 ports) to support it. The problem is that even though SH INVENTORY finds the card, I can't issue the "card type" command to indicate I am using it with a T1 - I get this:
R3(config)#card type t1 1 0
^
% Invalid input detected at '^' marker.
So I tried to issue the "controller T1" command and it does not recognize the slot as containing a T1 card (which makes sense since the "card" command did not work).
I found numerous references to this card being supported in Cisco docs with a minimum OS around 12.2(8) - it varies based on the chassis. I can't find the explicit OS required for the 1841 which is a concern but I am using 12.4(13r)T. SH VERSION finds "2 Channelized T1/PRI ports" which is the MFT card.
I need to get Serial interfaces configured on these cards.
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May 3, 2011
I had to dig this stuff out of storage and cobble together a router on short notice. I installed this WIC into a 2821 and I can see it when I do a show ver.
Cisco 2821 (revision 53.51) with 249856K/12288K bytes of memory.Processor board ID FTX1006C0P32 Gigabit Ethernet interfaces2 Channelized T1/PRI ports <-----------------------------1 Virtual Private Network (VPN) ModuleDRAM configuration is 64 bits wide with parity enabled.239K bytes of non-volatile configuration memory.125440K bytes of ATA CompactFlash (Read/Write)
When I do a sho run I see this:
controller T1 0/0/0 framing esf linecode b8zs!controller T1 0/0/1 framing esf linecode b8zs
How do I configure IP interfaces on it though? It doesn't seem to show up as Serial ports on a sho int. Am I doing something wrong?
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Sep 13, 2012
We have installed a VWIC-2MFT-T1 interface card into our 1841 router and the interface doesn't show up in CP. # we only need it for data. #
ROM version 12.4(13r)T, RELEASE SOFTWARE
All indications from my research show that this version should support this card, for data only.
why I can't see this card when I show interfaces?
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Aug 1, 2011
I added a VWIC2 1MFT-T1/E1 card to my 2901 router. There were two in it already, and I need to add a 3rd circuit. After installing the card, the boot process sees the new card, but once it is completely booted, the new card is nowhere to be found. I've swapped cards around to no avail. The new card works fine in one of the slots that had the existing cards in it.
From the boot sequence, I can see:
Smart Init is enabledsmart init is sizing iomem TYPE MEMORY_REQ HWIC Slot 0 0x00200000 HWIC Slot 1 0x00200000 HWIC Slot 2 0x00200000 <-- New card - same when I had it in Slot 3 Onboard devices & buffer pools 0x0228F000 ----------------------------------------------
[Code]...
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Jun 11, 2013
I am trying to find information on what the max clock rate supported on WIC-2T on a Cisco 2851 and Cisco 3845 Routers.
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Mar 6, 2012
I am using Cisco 2960 access switches and dont have NTP server so i can manually set time on switches but problem raised when these switches restart they show their factory default time.
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Mar 8, 2012
In cisco 1841 clock time is not stable.Every time the clock time is changed.
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Oct 12, 2012
what is maximum clock frequency of LAN card?
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Jan 1, 2013
what command will show the clock rate as received on the DTE side of a back-to-back configuration?the show controllers command shows the configured clock rate on the DCE side.But how about viewing the received clock rate on the DTE side?
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Jan 23, 2013
What happens with the sip phone 3905, because i cant set the rigth clock. its always display plus 2 hours from the right time in Brazil.
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Oct 29, 2012
I understand that most of the cisco switches does not have a battery-supported system clock. The better solution is to setup the NTP server and let the rest of the switches to synchnorise the clock with it. How about cisco switch 4948? Does it have a battery-supported system clock?If the cisco switch 4948 is the NTP master, how I am going to make sure that the clock will not be reset after reload?
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Aug 14, 2012
I have 6500 VSS Core Switch configured as NTP Server .I have installed ACS 5.2 vmware and sucessfuly integrated with the AD . I have noticed in some case, i lose connectivity between ACS and AD and when i say test connection , it shows clock skew error . Reboot of ACS sometimes solves the issue, else it comes up automatically after some hours . In core switch , i have configured time as PST +4 and in ACS it is configured as PST +4 , which automatically goes to GST.
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Aug 7, 2011
I'm going to be swapping out a WIC-1DSU-T1-V2 for a new VWIC2-2MFT-T1/E1, going from one to two T-1s. This is on a 2800 router running 12.4(23)
configuration examples for the two T-1 setup ?
commands to verify the installation (show me the two T-1s are successfully bonded and communicating as one logical entity) ?
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Jan 16, 2011
I'm trying to get an HP laptop running Win7 to see a desktop running WinXP on my network (both wired and wireless) When I run the troubleshooter in Win7, it tells me "system clock does not match local time" as the reason. I have a Belkin wireless router attached to my cable router. I have updated the system clock via the internet on the desktop and checked the time setting in BIOS. These seem to match. I have googled around on this and can't find any accounts similar. My son's Vista laptop and the Win7 laptop have seen each other since day one. The laptop and desktop did see each other at one time, but the connection was lost after I went to a hotel and changed public network settings temporarily. I can ping the desktop from the laptop, but it times out when pinging the laptop from the desktop. I'm running an avast firewall on both, but can't see a problem there.
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Oct 10, 2012
Can I use VWIC2-2MFT-T1/E1 along with NM-HDV2-2T1/E1 on 2921 and what is the minimum requirements for IOS image?As I understand, NM-HDV2-2T1/E1 is supported on 2921, however VWIC2-2MFT-T1/E1 is not, VWIC-2MFT-T1/E1 only. But VWIC-2MFT-T1/E1 is not supported on 2921.
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Jan 30, 2013
I have a problem with configuring of my vwic3-2mft-t1/e1 card on Cisco 2821 router. I need drop some raw data timeslots from E1 frame and then insert them into frame on other port. I enter the following commands:
card type e1 0 0
controller e1 0/0/0
tdm-group 0 timeslots 1-4
clock source line
controller e1 0/0/1
tdm-group 2 timeslots 1-4
[code]....
I find these commands in Cisco 1 and 2-port T1/E1 Multiflex Voice/WAN Interface Cards for the Cisco 1700 Series Router configuration guide for vwic2 cards.But this config is not working properly. show connect output is showing status of connection "UP", show controller e1 shows no errors on both e1 ports, but data not flows between ports.What am I doing wrong? Have vwic3 and vwic2 cards different configuration procedures or not?
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Jun 15, 2011
I think I have my PPP multilink setup correctly. Though I am getting AL lights on one of my connections via a VWIC2-2MFT-T1/E1 card. One AL light is on at each location. Though I checked with my ISP and they said it was my network cables as everything looked good on their end. Currently one T1 circuit is connected at each end so users do not see a disruption. This is a new install with two routers and the config is shown below.
Router 1-----
controller T1 0/0/0
cablelength long 0db
channel-group 0 timeslots 1-24
(code)
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Jul 19, 2012
I'm just double checking here because I saw one doc that didn't mention the 2900 on the data sheet but, I ve seen the 2900 listed with on others. I don't see the 2900s listed in this with the interface.
[URL]
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Sep 22, 2011
I have been advised by my service provider that to do ATM IMA I need an AIM-ATM and a VWIC2-2MFT-T1/E1 card, and that IMA is not support on the VWCI2-2MFT-G703 card.
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Mar 7, 2013
I was just given a task to setup some T1 connections. We rarely use T1 interfaces anymore as they are typically just not enough anymore. I see the newer vwic3 interfaces are supported on various 2900 series but downloaded the vwic3 configuration guide and noticed that the 1900 series routers were not in the list? Is this correct. So are vwic3-2mft-t1 ehwic cards supported or not on 1921 routers? i can see the controller interfaces but not the ports as there must be additional configuration required. Im running 15.1(4)M4 IOS version that looks to be supporting the cards.
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Mar 8, 2011
i have VWIC2-2MFT-T1/E1 card installed in 2821 ISR router, ios (C2800NM-SPSERVICESK9-M), Version 12.4(25d).does this IOS supports unframed G.703 and also does this card VWIC2-2MFT-T1/E1 supports unframed????
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Mar 2, 2012
When I'm on a fresh boot on my laptop (full shutdown then starting back up) my wifi connects just fine....perfect.However, when I close the screen (its a laptop) and it goes into standby...when I wake it up again my wifi icon by the clock shows that its still obtaining an IP address or whatever (little yellow dot bouncing back and forth over the icon)....The icon will stay like this until the next time I reset the computer....but the entire time my wifi works as it should....its just the icon thats being weird.
Fresh install of Windows (as of two weeks ago)
Windows XP SP3 - all updates are current
Dell Latitude D610
Dell Wireless 1470 Dual Band WLAN Mini-PCI Card
Broadcom NetXtreme 57xx Gigabit Controller (wired cat5 disabled)
1GB ram
all drivers up to date
Like I said...everything is working as it should..Its done this since I've done the fresh install of Windows, so it has nothing to do with any software I've installed or any of the updates.
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Jul 3, 2012
I have a situation where i am installing SGE2000Ps to replace my old switches and configuring VLANS. The time clock will not communicate across the VLANS. If I unplug the network cable and plug it back in I will get two successful pings. If i use a PC configured with the same network settings as the time clock and plug it into the port for the time clock it communicates fine.
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Aug 10, 2011
the VWIC2-2MFT-T1/E1 hardware installation guide?
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Apr 22, 2012
I have one 4506E switch working in Lan setup as a core switch with WS-X45-SUP6L-E running ipbase IOS 12.2(54)SG1. Each time after reload the switch we found that the clock is getting reset ( time is getting changed ) where as day, date & year is unchanged.
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May 5, 2011
I purchased a 2911 months ago to connect a remote site via T1 circuit.I think I might be missing some hardware to make this work on the remote end. Currently have a VWIC2-2MFT-T1/E1 card.Does this WIC actually work with this router? So no reference that this VWIC works with 2911.
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Apr 29, 2012
I am trying to use the connected WIC2-2MFT, as the servial interface on my cisco 1841.But it does not show me the option, under configuration interface
[code] What should I do to make this enable on this list?I am attaching the show tech-support, and show version of this device.
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Dec 3, 2012
We have installed a VWIC3-2MFT card on a Cisco 3945 voice gateway but the router doesnt detect the card. out put is as below;
Router Version
============
System image file is "flash0:c3900-universalk9-mz.SPA.150-1.M.bin"
Cisco CISCO3945-CHASSIS (revision 1.0) with C3900-SPE150/K9 with 980992K/67584K bytes of memory.
[Code]....
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May 10, 2013
I have a 3845 edge router connected to the Internet via four T1s and a HWIC-4T1/E1 card. We are adding two more T1s to the mix, and I have a VWIC2-2MFT-T1/E1 card. Here are my questions:
1. Is it correct to state that the VWIC2-2MFT-T1/E1 can support data in addition to voice?
2. I can use the HWIC and VWIC cards together to utilize the 6 T1s together?
3. Do I just add the card, configure the new slot, and add it to the same channel group?
Below is the current config regarding the existing card HWIC:
card type t1 0 0
security authentication failure rate 3 log
security passwords min-length 6
logging message-counter syslog
logging buffered 51200
[code]...
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May 22, 2013
I have ASA 5520 installed. I want to use ntp server for firewall clock setting. I found one open-access ntp server (stratum 2) in Los Angeles:
[URL] 209.151.225.100
Can I use the following command to set ntp server?
ntp server 209.151.225.100 source outside.
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Sep 19, 2012
My setup is ISP-2811-PIX 515E-LAN. Right now, I am doing a PAT for IPSEC tunnels to terminate on the PIX. Do you recommend I use the 2811 instead of PIX for VPN or keep things the way it is? Trying to determine the best box to use.
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May 27, 2013
I need to know which IOS should I download for my 2811 router to get all ip sla features
Router(config)# ip sla ?
<1-2147483> Entry Number
auto
enable
Note this is from my 2951 router.
I need full features like this in my 2811 router.so which IOS should I download.
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