Cisco Switching/Routing :: How To Clear Vty Line On Cat6500
Jun 19, 2012
how to clear vty line? Please see below. A sh tcp <line number> shows that the TCB is waiting for TCP Process. The TCP processs TCB is waiting for is SSH. I believe because of this ssh process still running, the vty line cannot be cleared.
sh users
Line User Host(s) Idle Location
1 vty 0 pf 10.10.20.8 9w1d 10.10.1.54
2 vty 1 pf 10.10.1.16 35w0d 10.10.1.54
3 vty 2 pf 10.10.1.16 1y14w 10.10.1.54
[code].....
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Nov 14, 2011
Assuming I have the following setup: Cisco 7604 Cisco Systems Cisco 7600 4-slot Chassis System OSR-7600 Clock FRU 1 & 2WS-F6K-MSFC2A Cat6k MSFC 2A daughterboard Rev. 4.0 WS-F6K-PFC3B Policy Feature Card 3 Rev. 2.4 WS-SUP32-GE-3B 9 ports Supervisor Engine 32 8GE Rev. 4.6 WS-X6148A-GE-TX 48-port 10/100/1000 RJ45 EtherModule Rev. 4.1WS-X6548-GE-TX SFM-capable 48 port 10/100/1000mb RJ45 Rev. 11.3 The SUP32-3c says it supports both L2VPN and L2TPv3, however the line cards are effectively 6500 line cards and I was under the impression the 6500 didn't support these.
If the supervisor supports a feature does that mean it is globally supported on a switch? Or do I need to check the compatibility of these line cards as to if they support these features?
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Feb 24, 2012
I ran across this today on a 7200 that when all the vty lines are filled, and dont release, you enter clear line vty x and it is supposed to release the line. Well in some versions it doesn't work.
Here is the work around I found. clear tcp line vty x
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Nov 16, 2012
I cannot eliminate the lines vty in my Cisco 7609 router when I write show users, I obtain the following thing: [code]
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May 17, 2011
I have dsl and my buddy is about a mile through the fields with a couple tree lines, is there any way parabolic antennas will work for me ?
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Oct 14, 2012
On my old 2511 access server, I could issue "clear line x" to close a session on an existing line.this doesn't seem to work on my new 2600XM with NM-16A access server (12.3(20)IOS), any command in newer IOS?
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Jan 1, 2012
What this crash means? This is a 6509 with a single Sup720 Cisco IOS Software, s72033_rp Software (s72033_rp-ADVIPSERVICESK9_WAN-M), Version 12.2(33)SXI, RELEASE SOFTWARE (fc2)System returned to ROM by s/w reset at 04:42:07 PST8PDT Mon Jan 2 2012 (SP by bus error at PC 0x40C6681C, address 0x424B).
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Jun 4, 2012
I am planning to upgrade my cat6500 using ISSU but can not find my doc to follow yet.
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Apr 12, 2012
Using the new SUP-2T, need to clarify one query. If we are using the new SUP-2T in VSS mode, will the new ASA service module and NAM-3 are supported? From Cisco site, ASA module FAQ:
Q. Will the ASA Services Module support the Cisco Catalyst Virtual Switching System (VSS) at FCS?
A. Yes, depending on which supervisor you use. The ASA Services Module supports VSS either as a single firewall or as a failover pair of firewalls, when used with the Supervisor 720-10G (VS-S720-10G-3C and VS-S720-10G-3CXL). Transparent and multi- context modes also work with the VSS in this configuration. However, though the SUP 720-3B (WS-SUP720-3B and WS-SUP720-3BXL) is supported by the ASA Services Module, it is not capable of supporting the VSS. No reference to Supervisor-2T.
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Oct 30, 2012
We have IP device on the farm switch(cat6500, which is an access layer siwtch), with the gateway on the core switches (Nexus7000), on the core when I do show ip arp, I found the mac.But when I do sh mac add add of that mac there is no port attached to that mac.
Since that particular vlan only resides on the cat 6500 and two cores, so I logged in to the 6500, and when I show mac- in that vlan, I didn’t find that mac addresss. Instead, I found another mac address with last 8bit are the same of that mac.
Is it some kind VIP of the mac? How so, if no port, how can the switch forward the frame? [code]
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Jan 11, 2012
I wonder whethere it is possible to check the the IOS version on the standby sup720 of a 6500? if yes, what command would you use?
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Mar 16, 2011
i will be creating combination of SPAN and RSPAN on catalyst 6506 according to the link
[URL]
im planning to implement this on two 6506 switches will this work? or do i violate the number of monitor session? sorce span?
sw1
monitor session 1 source interface Fa5/18monitor session 1 destination interface Fa5/48
monitor session 2 source interface Fa6/34monitor session 2 destination interface
[Code].....
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Nov 15, 2012
I get a unclear log entry in a VSS system.
Me_Kr #1 ME_KR_ERROR_CNT_LTL_PARITY_ERR_ITRP_0_0[01C8] : INTR= 0001 MASK= 0001
Me_Kr #1 ME_KR_ERROR_CNT_LTL_PARITY_ERR_ITRP_0_0[01C8] : INTR= 0001 MASK= 0001
Me_Kr #1 ME_KR_ERROR_CNT_LTL_PARITY_ERR_ITRP_0_0[01C8] : INTR= 0001 MASK= 0001
Me_Kr #1 ME_KR_ERROR_CNT_LTL_PARITY_ERR_ITRP_0_0[01C8] : INTR= 0001 MASK= 0001
[code]....
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Mar 27, 2013
I am having problems with IGMP and QoS on CAT6500 platform with SUP720 engine.The problem is, it seems that all IGMP packets are getting marked with DSCP 48 when sent out of the switch regardless of any input service policy. I found several articles saying that PFC QoS does not apply to IGMP packets. However in IOS 15 that should be possible, but I didn't get it to work there either. [code]
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Feb 10, 2013
I recently rebuilt the configuration of our Cat6500 multilayer device for use as a user stack. The device is funtioning as it should be, but I am unable to set SSH using the 'crypto key generate rsa' command. The crytop command isn't avaiable at all, which suggests a firmware issue.
I have configured a hostname and Ip domain-name and the image is the only one available.
The show version output is listed below.
show verCisco Internetwork Operating System SoftwareIOS (tm) s72033_rp Software (s72033_rp-IPSERVICES_WAN-VM), Version 12.2(18)SXF12, RELEASE SOFTWARE (fc2)Technical Support: [URL] Copyright (c) 1986-2007
[Code].....
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Jan 30, 2013
i have a campus network with 2 core Cat6500 and multiple 4500 series distribution switches plus 2960 series access switches,we have deployed IPTV system in the network but currently 50 TVs are working through sattelite stream from streaming server Cisco's DCM 9900.we are planning to add more 300 TVs in the network and i am wondering that when all of them will be deployed then what will happen for switches cpu utilizations when all the Tvs will be running on the same time with different different channels.
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Apr 17, 2013
If I monitor a trunkport on the rootbridge in both directions I get Duplicate Multicast Packets on the perticular VLAN. The first guess is, that this is worked as designed and not a IOS Bug (Platform CAT6500 SUP720 IOS 12.2(33)SXI9 ) Until know I only found an old Cisco press link from 2002 with this subject.
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Jan 8, 2012
I've been implementing a setup where a remote office has a Cisco 1900 router. There are 2 GRE/ IP SEC tunnels to the headquarters, 1 over public internet, 1 over a private cloud. Because of some MTU issues we have to clear the DF bit for some of the traffic, but we also want to use PBR to send https traffic over the "public internet" tunnel and the rest of the traffic over the "private cloud" tunnel. I'm able to clear the DF bit and to do the PBR with route-maps, but I'm not able to implement both functionality at the same time.
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Feb 19, 2012
I am in need to have the arp table cleared every 5 seconds or so on a 2800 router. I was wondering how I might be able to accomplish this.
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Jun 5, 2012
We have several 3750 stacks across our campus that we are unable to completely clear port security on. We have mac address stick set up on all access ports. When we clear the sticky address on the port, the mac address is removed from the running config like normal, but we keep getting port-security voilations. If port security is taken off the port completely, i.e. no switchport port-security, traffic still doesn't pass the port. Even clear port security across the stack doesn't work. If we try to reload the stack, only the master reboots, and the other switches in the stack lose switch capabilities.
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Aug 19, 2012
We have a 3750x switch with some issues on the arp. Our servers become unreachable for some time, buy when I clear the arp cache, I am able to ping the server again. I have tried adjusting the arp timeout but I don't think doing so would be the permanent solution.
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Mar 6, 2013
I tried to clear monitor session on 6500 and keep on getting the following error:
%Another session parameters or permit-list is being configured %Please wait for another configuration to complete.
how i can go about clearing the monitor session.
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Nov 21, 2011
I tried to clear monitor session on 6500 and keep on getting the following error:
%Another session parameters or permit-list is being configured %Please wait for another configuration to complete.
how i can go about clearing the monitor session.
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Nov 21, 2011
I was configuring a new Catalyst 2960 switch and had forgotten to set the speed back to 9600 after downloading the new IOS software image. I finished doing all of my configurations and went in to line con 0 to change the speed back to 9600. The change was accepted and I did a 'wr' to save the change, but when I reload the switch it is back to 115200.
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Mar 20, 2013
I'm configuring a new 2911 running c2900-universalk9-mz.SPA.151-4.M4. In the config by default is "line 2" its not a vty, aux or console line and I can't remove it.
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Feb 14, 2012
I have a Cisco 4500 Sup 6 engine and I have two 48 port fiber line cards installed. When I do a show interfaces I do not see any of the Fiber cards. This is a new out of the box 4500 and I installed the Sup 6 Line card in Slot #1, And the two 48 port Fiber cards in Slots 2 and 3. Am I missing something, is there a command or set up procidure for the line cards. I just assumed they were plug and play
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Jul 17, 2012
I have two data centres connected via a L2 DWDM, my manager wants to look into using OTV to get rid of the layer 2 broadcasting issues.
Problem is the DWDM is 1000BaseSX, which is only supported on the N7K-F132XP-15. (and the N7K-M148GS-11 but that doesn't support FCOE, so many bloody caveats). From what I can gather OTV is not supported on the N7K-F132XP-15.
Is it possible to terminate the DWDM on the F1 card & loop another port from the F1 to a port on the N7K-M148GT-11 & run OTV on the M1????
Either using VDCs or just an isolated VLAN on the F1. Is there any better way to do this? Hardware has not yet been purchased.
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Apr 2, 2013
We need to move some line cards around on our 4510. The top slots have a 24Gbps backplane while the lower slots are limited to 6Gbps. Poor planning on our part has left us with installing a 10Gb line card in one of the bottom slots. I'd like to move a couple of the cards up top, to the bottom.
My question is simply will the switch magically preserve the configuration for those cards and change the slot number for me or will I need to reconfigure the interfaces for those cards I move?
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Jan 13, 2012
NTP server When I setup NTP server to take time from [URL] everything is working fine but as soon as I reset my router during boot I can see that router is first trying to get time before it's even connected to ATM and when it can't get time from NTP server it's removing NTP line from configuration (ntp server uk.pool.ntp.org source Dialer0 ). How I setup to wait with sync and do it once ATM connection is up and established? Or How to get IOS to leave this line and sync with NTP every 10 min)?
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Oct 18, 2012
I urgently want to replace a faulty line card WS-X6748-SFP with a new one. The switch concern is a 5609-V-E operating in Virtual Switching System mode.How long do you suggest the down time will be?
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Feb 4, 2013
I have a requirement to upgrade some line cards in our 4510R-E chassis to ease some oversubscription due to the 6Gbps limit.
At the moment my plan is to upgrade three cards from WS-X4548-GB-RJ45 to X4648 to get the 24Gbps per card.
Supervisors are 6-E
1. Is this a viable plan?
2. If so can the cards be hot-swapped?
3. Would the new cards retain the existing interface settings of the previous cards?
4. Any gotchas to look out for?
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Jun 30, 2008
Cisco Catalyst 6509 Chassis.We have moved a line card from slot 8 to slot 6, but config remains for the line card in slot 8 and nothing is seen in slot 6.
We are running on IOS Verison 12.2 (33SXH2A) i.e. VSS.Blade model number is WS-X6748.
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Mar 20, 2012
when replacing a line card on a 6500, i gather there is no config stored on the card, its all held on the sup, so when i put in another card the config will be the same?
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