Cisco WAN :: 4500 Switch - Implementing Backup ISP Circuit Using RIPv2 On LAN
Mar 21, 2013
We currently have 3* offices located in London, Reading and Oxford which have a (ISP) VPLS service to interconnect all sites.I am using RIPv2 for intersite routing between all offices. We plan on implementing a backup circuit at the Oxford office for resiliency.There are 2* Core 4500 Switches, Core 1 is uplinked to the Primary circuit and Core 2 will be uplinked to the Backup circuit.At the moment Core 2 learns all of its routes from Core 1.My question is, if the Primary circuit goes down, how do we get the Routing on the Core Switches to than point out of the backup circuit?
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Apr 17, 2012
how to configure the 2nd WAN port to support 4G/LTE connectivity that will serve as the backup circuit to the primary MPLS circuit?
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Jan 10, 2011
Imagine you have 5 sites, one router each site (2851 as CE) connected to MPLS network. All sites have max 3xT1.Requirement:In case CE router or circuit to MPLS fails in any of those sites, I need to provide backup circuit to reach MPLS network.
Proposal:Bring one Internet circuit to each of those sites and create DMVPN to every site.
Question:Let's say Site1-MPLS circuit goes donwn.
Then all traffic from Site1-MPLS should flow thru the IPSec tunnel to all other MPLS sites. Am I right that the traffic coming from Site1-MPLS will ingress via the 2851 CE routers, correct? Is this the typical design? How to accomplish this, I'd like to setup a lab to simulate it.
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Apr 16, 2013
I thought I saw a post/question in regards to "how to" configure a Broadband backup for a MPLS circuit.. What I am trying to do is use a cable/dsl/ broadband (secondary) connection as a backup to a MPLS circuit (primary). I have EIGRP and BGP configured on both the branch endpoint and the tunnel headend. The tunnel is used by the interface that connects to the secondary circuit. The branch location router is a 1841 and the "headend" tunnel router is a 3825. I am wondering about the configuration/syntax of a "weight" or static route that can be used to have data flow over the tunnel when the MPLS circuit goes down - and then switch back to the MPLS circuit when it comes back on line.
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Jul 10, 2012
I have a question regarding Circuit-speed WAN performance. I purchased a 1Gbps Internet Link and want to know what my max through put would be on that router.
The Data Sheet states 35Mbps, why buy this router if I can not utilize this 1gig circuit.
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Dec 1, 2011
We inherited a lot of the equipment from another team of network administrators and every now and then, we run into a switch with some old code or configuration that was left behind and missed by us. Today, I discovered that CPP was enabled on 3 of our access-layer switches in one of the buildings we support.
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May 16, 2013
I am looking to enable QOS on a 4500 Switch with the following specifications:
Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSALK9-M), Version 03.04.00.SG RELEASE SOFTWARE (fc3) /with Sup 7-E 10GE (SFP+), 1000BaseX (SFP) WS-X45-SUP7-E CAT1639L46S
I have configured QOS on the 3750 switches but this seems to be a bit different.
Another quick question when you enable QOS globally on a device does it automatically create the ingress and egress queues and the SRR information?
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Mar 30, 2011
i have a core switch of 4500 series. some system are generating the traffic Extra LAN traffic. how i can monitor on switch that which system is generating the traffic,
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Jan 8, 2013
saw that we can secure ripv2 via authentication (simple and MD5) ,i undertand that simple is not quite secure because we can see the plain text when capturing RIP packets
however even with MD5 i can see the authentication data (output of MD5) and i think hacker can copy it and paste it in one RIP packet that he will generate !! isn't it ? so how much MD5 is secure ?
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Dec 14, 2011
Why Cisco 4500 R switch PBR tracking Command not working , I found just route-map next-hop ?
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Mar 12, 2012
RIPv2 And Disabling / re-enabling Interface
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Jul 24, 2011
I am working on a network that has four nodes/Currently I have RIP running in between R1 and R2, and between R3 and R2. These are shared and R1 can access R3 just fine.R3 is running BGP and communicating with R4.R3 can ping everything in R4's network with no difficulty.Currently R3 is not rebroadcasting the BGP routes into RIPv2 as needed.I have tried clearing my BGP session and am still not able to get the BGP routes from R4 to R1.
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Jul 22, 2012
We are going to be rolling the 4500 switches out and I wanted to know more about how to use the wireshark featue. Any documentation on how to use this?
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May 15, 2013
I am getting continous logs on my 4507 Switch :
May 16 12:45:09.000: %C4K_RKNOVA-4-INVALIDTOKENEXPIRED: STANDBY: Suppressed 302 times)Expired token 16490 in the invalid token list (NumEntries: 6) of type IrmPortId other id == 4294967287
May 16 12:45:09.000: %C4K_RKNOVA-4-INVALIDTOKENEXPIRED: STANDBY: Suppressed 302 times)Expired token 16490 in the invalid token list (NumEntries: 6) of type IrmPortId other id == 4294967287
does it lead to high CPU utilisation as well ??
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Dec 2, 2012
We've ordered a 4500 core switch and 4948 Server Farm switch for our client, but the switch box does not include a IOS image CD or anything related to IOS image and now the client is asking us why is this item missing as the IOS
-S45UK9-32-1502SGCAT4500e SUP7e Universal Crypto Image
-S49IPB-12253SGCisco CAT4900 IOS IP BASE W/O CRYPTO
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Jun 2, 2013
i configure the uplinks as etherchannel, i configure two svi interface on core switch int vlan 51(192.168.51.1) and int vlan 50(192.168.50.0) for this two svi int i configured two dhcp pool , when any of the pc is requesting for dhcp add i am getting dhcp request failed/
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Feb 24, 2013
I have a Cisco 4500. Recently some of the ports seem to have "died"/ will not supply Poe to phones. Some work for data only. Other do not work at all. The switch has been restarted, this made no difference.
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Oct 16, 2012
is it possible to run a Catalyst 4500 as pure Layer 2 Switch, i.e. disabling "ip routing", but still managing the switch via Fa1, i.e. the defautl mgmtVrf vrf ?I tried the following:
!
no ip routing
!
interface FastEthernet1
ip vrf forwarding mgmtVrf
ip address 192.168.1.1 255.255.255.0
!
ip route vrf mgmtVrf 0.0.0.0 0.0.0.0 192.168.1.254
ip default-gateway 192.168.1.254
I was not able to reach the Switch even from the same subnet. Only after enabling ip routing I could manage the Switch. I haven't found any command to set ip default-gateway for a vrf. Any workaround to keep routing disabled, but still manageable via VRF?
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Aug 17, 2011
I am little confused of how to take bootloader backup of cisco 6506 switch with WS-C6506-1300A CHASSIS and WS-X6K-SUP2-GE sup I am pesting a the part of sh run to show you the image files for the switch.
!
boot buffersize 522200boot system sup-bootflash:c6sup22-jsv-mz.121-8b.EX5boot bootldr bootflash:c6msfc2-boot-mz.121-8b.EX5enable password !
redundancymain-cpu auto-sync standarddiagnostic level complete
take backup two files in a tftp server.
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Apr 1, 2013
We are facing cold start issue on 4500 series switch. The switch is restarting automatically almost weekly twice or thrice.As per show tech. output , there is "cold start log".Please find the attached logs for your reference.After time change , auto restart happening & am not found any log for power failure also.
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Sep 19, 2012
How can I find out the firmware versions for IOS, modules and components of Cisco catalyst 4500 series switch. I can see the firmware version of IOS in show version command but how can I find it out for the modules or components of the switch.
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Oct 14, 2012
We have a 4500 series switch that is running around 39% cpu utilization but seems to be dragging a bit. I did a show platform health and GalChassisVp-review has a target of 3% but an actual of 17%. All other actual values were at or below target values. I then went to show platform cpu packet statistics and in the "Packets received by Packet Queue" all queue packet values at 5 sec, 1 min, 5 min and 1 hour avg were either 0 or 1 with the exception of Esmp - that averaged 351/377/317 and 313 respectively. I then checked show platform hardware acl input entries static and the entry type InputEsmpToCPU had a whopping 10121370 hit count. All other entry types were well under that number.
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Apr 3, 2012
i am trying to configure my HP 420 access point. I have configure different SSID on it, This access point is connected to cisco 4500 switch, i have configure trunk on up link to access point.my problem is the client are not able to get an IP address form the correct vlan if i tagged the SSID to it.
in the following the output of show run int in cisco 4500 switch:
interface GigabitEthernet3/13
description ==== HP ACCess point ====
switchport trunk allowed vlan 99,130,132
switchport mode trunk
[code]....
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Apr 24, 2012
I was checking some things on my Cisco 4500 and spot checking some of the ports. Using CNA it says it is at 10. The web browser to the switch says Full-duplex, 1000Mb/s, link type is auto, media type is 10/100/1000-TX on port 6i/18 The CNA says, so what would cause the difference?
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Dec 2, 2012
I signed up for Linksys Cloud access.. now going to my browser 'the old way' is disabled.. is there any way to switch back to accessing my EA 4500 using the old way by putting in 192.168.1.1 into the browser?
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Apr 19, 2011
I have problem with Cisco ACS 4.0 "Windows" with core 4500 switch "cat4500-ENTSERVICESK9-M 12.2" the problem shows only on one device "x.x.x.x" the problem is " Authen failed-------badcred------External DB user invalid or bad password" i can see it in failed attempt. on the same side i can see in Passed Authentications for same record "Authen OK", i can login to the mentioned switch using my ACS credentials and not local database credentials
can debug this from ACS if not how can view the authentication records from core switch?
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Nov 19, 2012
suppose i have one switch and many RIPv2 routers connected to it.ripv2 destination address is 224.0.0.9 that is mapped to 0100:5e00:0009 normally the switch will send this frame to all ethernet ports
is there a way to take benefit from the multicast address so that the frame will be sent only to the RIP routers.i know it is possible to map staticlly the mac address to some ports but is there any dynamic solution also?
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Jun 4, 2012
switch catalyst 4500 with ios cat4500e-universal.SPA.03.02.00.XO.150-2.XO.bin. I need to configure modules 3 and 4 of supervision, the problem is that I need the 4-port module 3 are active but only the first turn on both the module 3 and the first port on the module 4. [code]
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Oct 31, 2012
I have the attached setup. now i would like to limit my ftp transfer to 10 mb from a specific vlan to ftp server on the STM-4 (622) link. what would be the best way to limit ftp traffic to 10 mb .Video_Main#sh verCisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSAL-M), Version 03.02.00.SG RELEASE SOFTWARE (fc4)Technical Support:
[URL] Copyright (c) 1986-2011 by Cisco Systems, Inc.Compiled Tue 26-Apr-11 18:09 by prod_rel_team
Image text-base: 0x100A0994, data-base: 0x13CAB728
ROM: 15.0(1r)SG1Jawa Revision 7, Snowtrooper Revision 0x0.0x116
Video_Main uptime is 15 weeks, 3 days, 23 hours, 53 minutesSystem returned to ROM by power-onSystem restarted at 16:38:21 UTC Wed Nov 23 2011Running default software
License Information for 'WS-X45-SUP7-E' License Level: entservices Type: Permanent Next reboot license Level: entservices
cisco WS-C4506-E (MPC8572) processor (revision 8) with 2097152K/20480K bytes of memory.Processor board ID FOX1502GZHFMPC8572 CPU at 1.5GHz, Supervisor 7Last reset from PowerUp9 Virtual Ethernet interfaces204 Gigabit Ethernet interfaces10 Ten Gigabit Ethernet interfaces511K bytes of non-volatile configuration memory.
Configuration register is 0x2101
Video_Main#
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Aug 15, 2012
I have seen links out there for a conversion tool to convert commands on a Catalyst type switch (6509) to newer IOS type switches(4500-e) switches but they all error out on me on a 404. Any link where I can get this conversion tool?
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Jan 18, 2011
I have two 3750 switch.switch A(main) and switch B is connected by OFC but i have another wireless link for backup.Now if OFC goes down then i manually connect wireless link with switch B for this reasons i am faceing a lot of problem. I want without any changing of cable if my primary link goes down then my backup link automaticaly goes up and vice versa .
Switch-A port gi1/0/9 and Switch-B port gi1/0/9 is connect by OFC Switch-A port gi1/0/8 and Switch-B port gi1/0/8 is connect by Wireless link (backup) i attach my network diagram kindly find the attachment file.
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Jan 8, 2013
my 2970 having intermittent problem. i would like to swap with my backup switch WS-2950T. when i try to configure the 2950 following the 2970 config, i unable to perform this command "switchport trunk encapsulation dot1q". does 2950T does not support this command??
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Jul 27, 2012
I am having a problem reaching a soho linksys e1000 router through a second hop cisco 2900 router.Here is a brief topology of the network: I am using OSPF area 100 for all networks except for
192.168.2.0 on R1 to E1000 which is RIPv2
R1 directly connects to R2 with a point-to-point serial on network 192.168.12.0 /30 with ip 192.168.1.13
R1 directly connects to a a switchport using network 192.168.2.0 /24 with ip 192.168.1.75
R3 directly connects to a switchport using network 192.168.1.128.0 /25 with ip 192.168.1.129
R3 directly connects to a different cisco router using ethernet on network 192.168.1.0 with ip 192.168.1.1
E1000 directly connects to a switchport using network 192.168.2.0 /24 with ip 192.168.2.1
The switch has a vlan ip on 192.168.1.128 /25?I can ping from R1 to E1000?I can ping from R3 to R1 192.168.2.75? I can't ping from R3 to E1000 192.168.2.1?show ip route on R2 indicates that network 192.168.2.0 is reachable via the serial connection on 192.168.1.12?I have redistributed rip to ospf area 100 and OSPF to RIP on R1?I am wondering why R1 can reach E1000 on network 192.168.2.0, and why R3 can reach R1s 192.168.2.0 newtork, but R3 can't reach the E1000.There is an R2 router than can reach R1 and also cannot reach E1000, but I assume it's for the same reasons R3 can't, so I've omitted the remainder of that topology for this question.
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