Cisco Switching/Routing :: 2800 / How To Setup Redundancy
Jun 13, 2012How to setup redundancy on a 2800 series Router so that whenever it fails it will be routed through the MPLS router
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Cisco Switching/Routing :: 6509 / 4900 - Network Down Cause Switching Supervisor With Redundancy
Jan 11, 2012we've had an issue with our network, we have 2 6509 connected with redundancy, which are connected with 2 x 4900 Switches, from which are connected to a ESX Chassis for visualization, the thing is that the ESX stopped working, and the 4900 switches, and the main core were suffering from overload, they hang on it very well, in order to stop the overload, one of the links to the ESX Chassis were disconnected from one of the 4900 switches. The CPU usage from the 4900 and the core(6509) went down below 40%, and then they started to migrate the virtual servers from the chassis to another 2 chassis that were added right after. They were actually working well, but suddenly the 6509 changed to the other supervisor after everything was OK. We were wondering what could have been the cause of this, maybe the virtual servers migrations, maybe the overload from the ESX ? We also had a few question, is there any need to reload the cores every few months as a planned task ? Because the cores have been up for more than 1 year. And also is there any kind of of tool to monitor the CPU status, or the status overall from the cores or the switches ?
View 3 Replies View RelatedCisco Switching/Routing :: Switching Redundancy For ESXi VMHosts Scenario
May 12, 2013I have the following devices :
-1 VM Host
-2 Layer 3 switches
I would like to provide full redundancy for all vlans being used by VM Guests on the VM Host as well as the management vlan being used by the VM Host.I have created two LACP etherchannel connections on the VM Host. Each etherchannel from the host consists of 4 ports spanning a single NIC. One etherchannel connection goes to a trunked etherchannel connection on switch 1, and the other etherchannel connection goes to a trunked etherchannel connection on switch 2.Switch 1 and switch 2 have an etherchannel connection between them that carries all of the vlans in the topology.Vlan 2 is the managment vlan. Vlans 3, 4, and 5 are vlans that VM guest systems will be using for normal data traffic.
I intend to use switch 1 as the VRRP active router and spanning-tree root bridge for vlans 2 and 3.I intend to use switch 2 as the VRRP active router and spanning-tree root bridge for vlans 4 and 5.The spanning-tree configuration is using multiple spanning-tree with two instances. Instance 1 has vlans 2 and 3 associated and Instance 2 has vlans 4 and 5 associated. I would like to have this topology be fault tolerant to the point where if one of the etherchannel links between the host and one of the switches goes down, (for example, if switch 1 was powered off) traffic will be automatically redirected through the other functional link. I believe that my VRRP configuration would allow for a fairly quick failover of layer 3 services, but I am not certain that my design will be functional at a layer 2 level.
What I am uncertain about is how spanning-tree will converge. I am assuming that the virtual switch on the VM host will not be forwarding any BPDUs being sent by either switch. Would either of the links connecting to the host be considered a redundant link by either switch?Would the link between switch 2 and the host be inactive for all vlans in MST instance 1 during normal operation?Conversely, would the link between switch 1 and the host be inactive for all vlans in MST instance 2 during normal operation? Would all links remain active for ALL vlans? Would this mean that some traffic may travel through switch 2 to reach switch 1 instead of going directly to switch 1?
Cisco Switching/Routing :: ISR 881-SEC-K9 Vs 891-K9 And 2 ISPs Redundancy
Nov 1, 2012have main office of 70 people.Also I have 2 redundant ISP:One give me 20 mbit/s Other only 2 mbit/s and it is my backup ISP.
I have some resources in data center and I need a IPSec VPN to it and some other location. I suppose there will be up to 3-5 IPSec tunnels. I choose Cisco ISR 881-SEC-K9 with one wan port and 4 LAN switch. But know I’m looking for Cisco 891-K9. There is no security bundle for it. But in cisco.com this router is marked Cisco 891-K9 Security router. Does it support security features like VPNs, ZBF, IOS Firewall, NBAR and IP SLA for ISP redundancy? Also if my boss will choose chipper Cisco router 881-SEC-K9. Will I be able to organize 2 ISP redundancy on 4 LAN switch port inside VLAN interfaces because there is only one WAN port?
Cisco Switching/Routing :: 6509 SSO Redundancy IOS Upgrade
Sep 9, 2012I have a 6509 switch with SSO Redundancy (STANDBY HOT) with IOS ver 12.2(17d)SXB11, RELEASE SOFTWARE (fc1) (c6k222-jk9sv-mz.122-17d.SXB11.bin). I need to upgrade the IOS on this switch.I have 512MB Memory on the switch and 40144896 bytes free on Disk0.which IOS is the latest version to upgrade and also give me some hints for IOS upgrade on this switch?
View 7 Replies View RelatedCisco Switching/Routing :: Redundancy Between One 2911 And Two 2960?
Aug 2, 2012we are in the planning phase for a network upgrade. We have two C2960 Switches connected via one (L2) Etherchannel (4x1 Gbit/s) which works very well. In the next phase we would like to upgrade our router to an 2911 series which has 3 gb interfaces. and indeed we would like to create an etherchannel as well. our plan is to use 2 of the 2911 to connect to the first 2960 switch and the one left to the other 2960. i think we will achieve some redundancy with this config.
View 6 Replies View RelatedCisco Switching/Routing :: Have Redundancy Between WS-X6K-SUP1A-2GE And WS-X6K-S2-PFC2
Mar 26, 2012I would like to know if i can have redundancy between these Supervisor Engine (on the same chassis) :
WS-X6K-SUP2-2GE & WS-X6K-S2-PFC2
I already know that WS-X6K-SUP2-2GE + WS-F6K-PFC2 = WS-X6K-S2-PFC2, but i'm not sure if we can have compatibility(redundancy) between these two cards.
Example :
Mod Slot Ports Module-Type Model Sub Status
--- ---- ----- ------------------------- ------------------- --- --------
1 1 2 1000BaseX Supervisor WS-X6K-S2-PFC2 yes standby
2 2 2 1000BaseX Supervisor WS-X6K-SUP2-2GE yes ok
Cisco Switching/Routing :: Configure Routing Between 2800 And 3550
Sep 18, 2012The layer 2 switches are connected to layer 3 Switch via trunks, and routing between layer 2 switch ports with configured SVI's on 3550. All working fine. Now I'm trying to configure routing between 2800 and 3550, I tried connecting both Straight Throught and Crossover cables to the 2800 Fa0/0 and Fa0/1 ports as well as the switchports on 3550
No switchport commands are configured however, the lights do not go on for both straight through or crossover cables. I tried connecting 1750 routers but same result. My goal is to have all the VLANS routed to the internet with configuring NAT translation the router.
Cisco Switching/Routing :: ASR 1002 Inter-chassis Redundancy
Sep 9, 2012Can any share some useful links on how this works and how to configure it? Do you still need to configure FHRP or does configuring redundancy take care of active/standby relationship between the ASR's?
View 2 Replies View RelatedCisco Switching/Routing :: C4510 With Redundancy Supervisor 7E Crashed
Oct 31, 2011Our company's c4510 with redundancy supervisor 7E just been crashed, first the master then the slave. What should I do ?
View 1 Replies View RelatedCisco Switching/Routing :: Core 4506 HA And DHCP Redundancy?
Dec 18, 2012I have a setup with two Cat 4506E working as a HA,I used a bundle 4Gb interfaces working as ether-channel,I'm facing a problem with DHCP pools on the both SW's,There is no problem if I use the pools on one sw,But when I but the pool on both sw's then I faced a lot of conflict IP in the DHCP pools,How can setup a real DHCP redundancy on both SW's,
View 6 Replies View RelatedCisco Switching/Routing :: 4507R+E / SSO Not Available As Redundancy Mode Option
Oct 31, 2012Why rpr is the only available redundancy mode option available to me. I'm running a 4507R+E with twin SUP7-E's.
Abbreviated show ver Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSALK9-M), Version 03.03.01.SG RELEASE SOFTWARE (fc2)Technical Support: [URL]/techsupportCopyright (c) 1986-2012 by Cisco Systems, Inc.Compiled Sun 26-Aug-12 13:45 by prod_rel_team
ROM: 15.0(1r)SG2gp08401 uptime is 6 weeks, 6 days, 4 hours, 59 minutesUptime for this control processor is 6 weeks, 3 days, 2 hours, 21 minutesSystem returned to ROM by RPR SwitchoverSystem image file is "bootflash:/cat4500e-universalk9.SPA.03.03.01.SG.151-1.SG1.bin"Jawa Revision 7, Snowtrooper Revision 0x0.0x1C
[code]....
Cisco Switching/Routing :: 3750 HSRP For Server Redundancy
Aug 14, 2012I am facing a problem in implementing HSRP. My scenario is like this, I have two 3750 switches and I have a server with two NICs. I want to run HSRP in these two switches. By the way the server is connected directly with the switches. I mean each NIC to each switch.we have teamed the two NIC (Active / Standby).what configuration need to done in switches to work HSRP.
View 4 Replies View RelatedCisco Switching/Routing :: 2960s / Redundancy Without Spanning Tree?
May 8, 2012I want to have an opinion that which switch shall I replace the Cisco 2960s with so as to elimintae the need for spanning tree in there but then what would be the design look like between Netscreen and those new switches. Also would it be vendor independant to work Between Cisco and Netscreens/Cuberguard.
View 1 Replies View RelatedCisco Switching/Routing :: 6500 Link Redundancy With Eigrp
Oct 9, 2012Four 6500 connected to each other to form a full mesh. Switches 4 and 7 is running eigrp. A question came up, why didnt it have eigrp on SW 2 & 3 ? Will it still be redundant if link between SW3 and SW4 is removed? If redundancy is working, SW3 should be able to find its way to SW4 via SW7 or SW2, yes?
The config looks:
SW4 eigrp
router eigrp 100
network 192.168.0.0
redistribute static
auto-summary
[Code]....
Recently, the eigrp was configured to SW 2 and SW 3 as well, it included the “redistribute static” statement. The route for SW2 and SW3 now has the VLANs, 51 or so. Sent ping from a PC to VLAN1 IP of SW3, then link between SW3 and SW4 was disconnected, network connectivity went down for about 20secs, and ping came right back. Thought it was a success. All of a sudden, outside connectivity was lost. Ping within the LAN was successful, but no internet connection.
The eigrp on SW2 and SW3 was removed, and the internet connection came back up. The initial concern was that although there is physical redundancy in place, the other routes may not be known. Hence, eigrp configuration has been attempted for SW2 and SW3. Perhaps the “redistribute static” should have never been configured on SW2 and SW3, SW7 does not have the “redistribute static” statement anyway.
Without eigrp running on SW2 and SW3, does it still have redundancy? For what it’s worth, SW4 and SW7 are both VTP servers. With the current configs, does it still have redundancy? Link redundancy was never tested; it always has been assumed that it works. Later today, with it’s current config, the link redundancy will be tested.
Cisco Switching/Routing :: 65000 - Can't Find Redundancy Mode
Nov 15, 2011I'm not able to find power redundancy mode when i do show power on my Cisco 4510R+R with SUP7E.
[code]...
When i do show power on my Cisco 65000 the first line shows the power redundancy mode, I have all other show power related command but couldn't find redundancy mode
Cisco Switching/Routing :: IP SLA Between 2900 (15.0) And 2800 (12.4)?
Apr 11, 2013I've problem with IP SLA probes between two different routers.2900 (c2900-universalk9_npe-mz.SPA.151-4.M4.bin) here is set "ip sla responder" only and 2800 (c2800nm-advipservicesk9-mz.124-24.T2.bin) here is set two type of tests "udp-jitter" and "icmp-jitter" - temporary, used to check for availability of 2900 router.As a result, I've what udp-jitter doesn't work at the same time icmp-jitter test is OK.Here are the settings of IP SLA tests
ip sla 281
icmp-jitter 172.25.28.1 source-ip 192.168.28.6 num-packets 100
tos 128
frequency 120
ip sla schedule 281 life forever start-time after 00:05:45
[code]...
Cisco Switching/Routing :: Build Improved Redundancy Into LAN By Stacking Two 3750
May 1, 2012I plan to build improved redundancy in to my LAN by stacking two 3750s and teaming pairs of NICs on my Dell PowerEdge servers, with each cable of the pair going to a different switch.In my mind this provides redundancy for the NICs and the switches. Does this configuration will work, and also what type of teaming is supported, as I was planning to have one NIC active and one standby, but can I run this configuration with both NICs in the team as active with load balancing?
View 1 Replies View RelatedCisco Switching/Routing :: 6506 Deployment Redundancy Links Different Length
Sep 26, 2012I am still working on the design of my big project and always that you think that every thing is solve, appears a details.We need to deploy a fiber links to some buildings that will have access switches connected to the Core. I have been reading about ethernet ring topologies and quite differents to the hierarchical model because of the using of Ressilent Ethernet Protocol instead of STP or RSTP.My question is which of the next to scheme will be the best?
1.- Deployment an ethernet fiber ring topology with REP? Consider that the edge Switch of this ring will be my Core and this one is connected to my distribution switches in a hierarchical topology. In this situation, Acces Switch 1-A is connected to Acces switch 1-B, Access Switch 1-B to 1-C and Switch 1-C to the Core. Feel fre to recomend me wich switches and considerations are the best. We conssider 1 Catalyst 6506 Chasis for the Core and catalyst c2960s-48-TDL for acces, maybe the 3750x series. Each Acces node in the ring topology will have a maximun of 50 end devices.
2.- Deployment a Fiber ring but not connecting each switch with the next. In this case we want to ensure redundancy to the core wih equal costs path, but because of the ring each switch won´t have equal length link to the core. In this situation, Acces Switch 1-A is not connected to Acces Switch 1-B is connected directly to the core but the fiber cable will take the route to Access Switch 1-B, to Acces Switch 1-C and finnally to The Core Switch. This apply to the other to Switches. Note now that Acces Switch 1-A will have a 281 Ft link to the core and a second 1612Ft. link to the core. Here comes the question this differents lenght will negative affect RPVSTP ? or It doesn´t matter? Can i setup an etherchannel/load balance in this situation?
Cisco Switching/Routing :: Configure Dual SUP 7 On 4507 Chassis For Redundancy?
May 24, 2012I need to configure a 4507 chassis with two SUP 7 installed. I havenot done SUP redundancy comnfiguration and i was owndering
View 9 Replies View RelatedCisco Switching/Routing :: 4507R Configuring Supervisor Engine Redundancy
Feb 14, 2012How to configure Supervisor Engine Redundancy between two different cisco 4507R and 4506E.
View 5 Replies View RelatedCisco Switching/Routing :: Nexus 5000 And 3750 Switch Redundancy
Oct 31, 2012My network consist of that network device. cisco catalyst 3750 with stackwise, 2xnexsus 5000 series and servers.servers connected to nexsus switch. nexsus connect to 3750.
Each server have two link, one of them connect nexsus1 and other connect to nexsus2 switch.(same traffic) each nexsus have one link to 3750. At 3750 the nexsus link configurate etherchannel. but the flapping occur at 3750.
i understand that at 2 nexsus link have the same server source mac address so the flapping occur at 3750. how i solve this problem?
Cisco Switching/Routing :: 3640 GLBP Working Now Want Interface Redundancy?
Dec 6, 2011So I have 2 routers (cisco 3640) that each go to their own ISP and then back to the same switch. I have setup ospf and glbp, and now have pretty good redundancy. If either internet connection or routers go down everything is still golden.
So I was thinking that if an interface went down then the router would not be load balanced with glbp which got me thinking whats the best way to get interface redundancy (and I was going to add a 2nd switch with the second interface).
1) Setup BVI on the 2 interfaces.
2) Setup a 2nd interfaces (on each router), I would have to split the subnet, for instance: [code]then the machines could be on the subnet 192.168.0. 0/23 and setup glbp for 1 ip across all 4 interfaces (I'm not even sure if you can do this but think it would work).
3) Is there a way to utilize etherchannel or anything like this
A negative to option 2 would be that if 1 of the interfaces went down, all the sudden 2/3 (or so) of your traffic would be going through 1 router.
Cisco Switching/Routing :: Auto-redundancy Using Etherchannel In 2960 Not Working?
Apr 15, 2012I'm using Packet Tracer for testing since I don't have the actual equipment. I have configured etherchannel between two 2960 Switches. I have used the trunk ports FE 0/23 and FE 0/24 on both switches to create the etherchanel. I have connected one PC with each switch. The PCs are in the same VLAN and can ping each other. Howver, when I take down one of the links in the etherchannel, the other link does not take over and I get 100% packet loss. I don't know what seems to be the problem. I'm quoting the configurations below:
Switch0:
Switch#sh running-config
Building configuration...
Current configuration : 1179 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
[code]....
Cisco Switching/Routing :: 5520 Dual Core Switch For Redundancy
Sep 16, 2012I have the following: 1 5520 ASA connected to the internet, 2 core switches, and several access switches.Aside from implementing RSTP, VRRP, hard code access and trunk ports, is there any other recommendation you would like to add.
View 7 Replies View RelatedCisco Switching/Routing :: Normal CPU Performance For 2800
Dec 11, 2011Is there any official Cisco reference to describe what is considered to be the highest acceptable production CPU load on 2800 routers? I found the document "Integrated Services Routers G2 - Performance Overview" that states at page 5,Most service providers set their CPU alarms to 60 or 65 percent. Many enterprise customers are comfortable running production networks with CPU around 70 or 75 percent.
View 3 Replies View RelatedCisco Switching/Routing :: 2800 Route Filtering
Apr 3, 2012I have a router with two interfaces what i need to filter the HTTP traffic from one interface and the rest of the traffic through the other on my cisco router 2800.
View 3 Replies View RelatedCisco Switching/Routing :: Creating A VLAN On 2800
Nov 20, 2011I have a problem to create a VLAN with a Cisco 2801.,I need to have base ports FastEthernet 0 / 0 and FastEthernet 0 / 1, in the same VLAN.
Basically I'm trying to switch access redundacion, now I have redundant switches in which I have the servers, but if one of these switches fails, and,coincidentally is where I have connected the router, the server runs out of internet connection.,I idea is to connect the FastEthernet 0 / 0 to a switch, and FastEthernet 0 / 1, to the other switch,but I managed to have these two ports in the same vlan, in order to have a unique IP for both FastEthernet ports,As I can do this?. do is a lot of documents using the switchport command, but this command is not available in my router, I tried different IOS, and nothing.,currently I have the following IOS: c2801-adventerprisek9-mz.124-24.T6.bin
Cisco Switching/Routing :: Best Way To Block Website On 2800
Nov 26, 2012I have a 2800 router and tried so many ways to block the unwanted sites on my office network.Like access list ip based, null0 routing and policy map. Faced issues with below config
1. Creating Access-list. very difficulty to block the sites with https those sites will be opend, and we cant block all the IPs
2. Creating null0 routing. it also a bit deficult the block maximum sites because we can't fiend all IPs for those sites
3. Policy map.. with policy map we can only 1site we can block, but not more than one..
I heard that port based routing or port based access-list are the best ways to stop the websites in my local network..for this one i need to map the site to unsued ports then i need to null rouging or need to create the access-list.
Cisco Switching/Routing :: How To Block Sites In 2800
Nov 23, 2012I have a cisco 2800 router.. (flash:/c2800nm-advsecurityk9-mz.151-4.M4.bin, Version 12.4(13r)T11) configured DHCP, DNS, NATING and Bandwidth restriction...And to stop some social network [URL] i configured ip route 66.220.144.0 255.255.240.0 Null0 (rang of facebook address) But still i am able to open facebook.com in my network...
ADMIN-II_2811#sh run
Building configuration...
Current configuration : 1812 bytes
!
! Last configuration change at 17:26:33 UTC Sat Nov 24 2012
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
[code]....
Cisco Switching/Routing :: Upgrade IOS On 2800 Router?
Oct 16, 2012Needing to upgrade IOS on 2800 router from c2800nm-advipservicesk9-mz.123-14.T7.bin to c2800nm-advipservicesk9-mz.124-15.T13.bin. I noticed ther are several other files on the old code that may needed for booting up router but Im running low on memory. The other existing files are ;
c2800nm-advsecurityk9-mz.124-3i.bin
securedesktop-ios-3.1.1.45-k9.pkg
sslclient-win-1.1.4.176.pkg
Do I need these files for the upgrade or can i delete them when upgrading to 124-15.T13.bin. ?
Cisco Switching/Routing :: 2800 Series VPN And PCI Compliance
Aug 21, 2012I'm trying to turn off SSH version 1 & 2 to pass PCI compliance. Problem is, I cannot touch the VPN link between the two offices. I'm afraid the PKI certificate used for the VPN will be deleted if i zeroize the RSA key which seems to be the only way to stop the router responding on port 22.
Here is the stuff from the running config related to the crypto map:
crypto isakmp policy 1
encr 3des
authentication pre-share
group 2
[ code].....
I'm only CCNA so I'm not even sure if the certificate or RSA key is being used for the VPN link, but I can't tell from the running config that zeroizing it would be a good idea and not break the VPN. I'm open to other ways of disabling SSH, as we are able to just connect using a console cable. But it looks like denying port 22 with an access-list doesn't even stop the router from responding to the port.
Cisco Switching/Routing :: Core 4506 HA (redundancy) Up-link Interface Failed?
Oct 25, 2012I am trying to troubleshoot my new design as you can find it in the attached file, the setting of the up-link interfaces as below:
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