Cisco WAN :: 2811 Manage Routing Priority Between WAN And LAN
Jun 13, 2013
I have a known working configuration with many sites and one operative center that receives all communications.The connection OF THE OLD SITE is here detailed:Now I need to integrate another site. The difference between the old site and the new site is the following:
-old site communicates with the operative center by means of the FE0/1 or by means of an HWIC4T serial interface.
old site automatically switches between the tunnel on the ethernet interface (FE0/1) and the serial channel giving priority to the ethernet tunnel.
-new site will communicate with the operative center by means of the FE0/1 or by means of a transceiver device connected on the FE0/0.
-both new site and old site have a LAN on the FE0/0 where data is generated and sent to the router to be dispached to the best available channel.
The connection of THE NEW SITE is here detailed: the old site was configured this way: [code]
the first line means that everything starting from the client directed to 192.169.0.2 it will be sent on the tunnel1.the second line tries to route the same packets on serial0/0/0 with low priority.On the New site i did the same:
i created the tunnel form my cisco 2811 to the operative center using the FE0/1, then i added the following:ip route 192.169.0.2 255.255.255.255 Tunnel1
This works as expected routing the packets to the operative center on the FE0/1.Now I miss the second part: route packets on the FE0/0 to the ip address 192.168.1.31 WITH LOW PRIORITY like i did on the old site.
I did some tries but no one solves. Which is, in your opinion, the right command to add on the cisco2811 in order to get the equivalent of what i did on the old site ( ip route 192.169.0.2 255.255.255.255 Serial0/0/0 10 ) ?
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May 2, 2013
I need to trust and prioritize voip traffic on my 6509 core
at the moment I have mls qos trust dscp on the interface
Is this enough? or do I need to enable the priority queue? how do i do this ? as it doesnt accept the priority queue out command like a normal switch
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May 2, 2012
Recently we will add 2 new core Switch 3750X, these 2 equipments will manage the spanning tree ( root)my idea is to change the priority in order to make 1 or the 2 of them the root, my question is if i setup the same priority for both when one go down the other will assume the role of root in the spanning tree topology ?
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Sep 19, 2012
Why is it when I set the port priority for example to 8192 and I then do a show spanning-tree vlan 1 it shows as 8193, does it add the vlan number? so if it was vlan 10 it would be 8202?
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Jun 12, 2012
If after having an active peer-link port-channel between a couple of nexus 7010 I change lacp system-priority on both boxes and then I add a new member interface on that port-channel , that interface will be aligned with new lacp system-priority value but the old member do not and so I have to reload those modules which include old member interface.
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Dec 13, 2011
After opening up Solarwinds NPM, I noticed that a few of my interfaces had lots of discards (who knows how long it's been sets the counters were reset)
interface GigabitEthernet1/0/25description Etherchannel to MamaCassswitchport trunk encapsulation dot1qswitchport mode trunkswitchport nonegotiatepriority-queue outchannel-group 4 mode on
interface GigabitEthernet2/0/25description Etherchannel to MamaCassswitchport trunk encapsulation dot1qswitchport mode trunkswitchport nonegotiatepriority-queue outchannel-group 4 mode on
interface Port-channel4switchport trunk encapsulation dot1qswitchport mode trunkswitchport nonegotiate,It looks as if priority-queue was configured outbound on these interfaces, could this be the cause of the transmit discards which are now up to 79,835, I just reset the counters on the interfaces a little while ago.
I'm not the best in the world when it comes to QoS, we do have some VoIP phones, but they are only a specific network, and do not travel outside, since there are used mainly for VoIP training. I do know both interfaces are running the default of FIFO.
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May 8, 2012
May I know how to manually set the priority (root ID and bridge ID priority) and for spanning tree? Which one should I use based on the command below? and how does it affect the path cost of it?
set spantree root 1
spanning vlan1 priority 4096
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Jul 7, 2012
I have a 7K running 6.1 code, on F series line cards. I need to set it to prioritise DSCP EF marked traffic, that's all at this stage, but am unclear on the configuration steps required. The packets will already be marked, I just need to ensure they end up in a priority queue.
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Feb 20, 2012
I have a Cisco Catalyst 2960 with IOS Release12.2(53)SE (because of a contract I can not update it) -> the release notes for this version describe the following:
When auto-QoS is enabled on the switch, priority queuing is not enabled. Instead, the switch uses shaped round robin (SRR) as the queuing mechanism. The auto-QoS feature is designed on each platform based on the feature set and hardware limitations, and the queuing mechanism supported on each platform might be different. There is no workaround. (CSCee22591)
My config is as follows:
interface FastEthernet0/1 switchport access vlan 200 switchport mode access srr-queue bandwidth share 10 10 60 20 priority-queue out mls qos trust dscp auto qos voip trust no cdp enable network-policy 1 spanning-tree portfastMy question now is:When the priority queue is not enabled with auto-qos because of the software bug is it nevertheless enabled with the additional priority-queue out command?
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Nov 22, 2011
I am getting ready to make changes to our spanning-tree configuration in the data center. In familiarizing myself with the network I noticed that our core switch (6509) wasnt the spanning-tree root for the datacenter.
When I enter the spanning-tree priority command on the central 6509, will it be a hitless change (i.e. will there be any disruption to the network) ? All switches are connected to the core/central 6509 by a direct connection.
I know that when I change from pvst to rapid-pvst that the network will bounce because of the change in configurations to all of the switches.
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Nov 19, 2012
i have a 3560 connecting to a sp with limited bandwidth. i have one interface on the switch whose traffic i do not want to drop. i want this traffic to go into the high priority queue. i am not sure how this should be configured, but here is my best guess and my current qos configuration on the switch:
qos map cos-dscp 0 8 16 26 32 46 48 56
mls qos srr-queue output cos-map queue 1 threshold 3 5
mls qos srr-queue output cos-map queue 2 threshold 1 4 6 7
mls qos srr-queue output cos-map queue 2 threshold 2 3(code)
since cos 5 is mapped to dscp 46 then this traffic would go into the priority queue. is this correct ?
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Jul 17, 2012
I'm having with VSS Failover. Currently I have two 6504's setup for VSS with one connection to the sup engine (10Gig__Connection) and the other connection on the Module 3 10Gig Blade and the same setup on the other 6504.My question is: If the active 6504 has a power outage or the link on the sup engine goes down, and the standby 6504 becomes active, what happens when the Failed 6504 comes back online with a higher priority and preempt set? What happens with the 6504 that took over as Active and now eeds to go back to Standby, what's required?
What I'm seeing is once the Standby took over and became Active in order for him to go back to Standby mode it's asking for a reload to take place is this NORMAL?
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Mar 18, 2010
I am trying to implement priority queuing (LLQ) on a pair of 10GE links between a 4507 with Sup6E and a 4948 which are configured as an etherchannel. I am unable to configure a priority queue on the 4507. I am running into the following issues:
I want to have a priority queue for voice traffic and specify minimum bandwidth for a critical application. If I configure a class with the priority command it will not let me use the bandwidth command on another class unless the priority class is policed. If I try it without the police command I get the message "bandwidth kbps/percent command cannot co-exist with strict priority in the same policy-map ". If I add a police statement to the priority class then I don't get this error.
When I try to apply the resulting service-policy to the physical interface it says "% A service-policy with non-queuing actions should be attached to the port-channel associated with this physical port" and does not add the command to the config.
If I try to associate the same policy-map to the port-channel rather than the physical interface it says "% A service-policy with queuing actions can be attached in output direction only on physical ports" and does not add the command to the config.
All of the other interfaces on the 4500 are working OK. The trunks have auto qos voip trust configured and access ports are marking the critical application traffic.
The 4507 is running 12.2(44)SG1 EnterpriseK9. I don't have the luxury to upgrade blindly to fix the problem unless I can identify a specific bug that is causing the problem.
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Nov 13, 2011
I need to get some low volume, interactive data, prioritized on frame relay PVCs across our network. I have followed the CBWFQ examples from cisco.com, but my test packets are still showing latency over 1 second. My lab set up has a corporate connected gateway router linked via FE to testrouter 50. TR51 has a T1 frame relay loop to another router acting as a frame relay switch. The other side of the FR switch has a 56k link to testrouter51. I am sourcing test pings from my desktop PC, that are marked as AF43, and leave at a rate of 1/second, when the response comes back in time. I am using a Smartbits to generate some default class traffic at a rate of about 56Kbps only in the 'outbound' direction, toward TR51, as this emulates a file copy from corporate to remote sites, that is causing the AF43 traffic to suffer. Here is the relevant config on the TR50 device:
class-map match-all rtu-data
match ip dscp af43
!
policy-map frame-56
class rtu-data
priority percent 20
class network-mgt-data
bandwidth percent 5(code)
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Feb 28, 2012
Within our small lan we have a core 3750, that handles our intervlan routing and is the core of the network. I recently looked into multicasting and set up a lab test with a 3550 with an EMI image and got the config to multicast to all vlans from one vlan, ready to go, at which point I found that our 3750 is IPBASE and doesn’t support multicasting. Currently upgrading the switch or image is not an option due to funding. My question is would it be possible and advisable to install our lab 3550 as a leg off the core, and in some way route multicasting traffic through that?I just cant get my head around the concept of having a core switch essentially routing all vlans, and then having another switch route the same vlan traffic again for multicasting to all the vlans again.
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Sep 5, 2012
My understanding is that even layer 2 switches like the Cisco 3500XL can have 1 IP address for management. However, I cannot seem to figure out how to configure it to get it working in a router on a stick setup. I can manage the router through SSH, but I cannot SSH to the switch.
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Nov 13, 2011
I have a client whom has asked me to enable web management on some of his 2960 switches. I did not think this was going to be an issue, and so I told the customer I would set this up for him.
Much to my dismay, I have been able to get http and https enabled, and then authenticating locally for the HTTP access. I then come to the screen once authenticated which is shown below:
The issue is that when I select "Web Console", it gives me a "Web Page Cannot be found".
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Nov 30, 2011
I have three 4506 switches with vlan 4 set as the management vlan. Switch 1 is connected to switch 2 and switch 3.
I can access switch 1 and 2 using telnet from the management vlan and both switches reply to pings. But from switch 1 or 2 I cannot ping or telnet switch 3. If I plug into switch 3 and I can ping and telnet switch 3 but not switches 1 or 2.
It is as if the management vlan 4 is not being passed to/from switch 1 and 3. The configs for the uplinks from switch 1 to 2 and 3 are the same. And the configs for switches 2 and 3 look the same apart from the port settings.
I have over 40 vlans running all that work fine between all the switches.
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Dec 9, 2011
I have a Cisco 1941 router... ipbasek9. I want to use this at home for my primar LAN->WAN interface. So i need the Security license enabled.I have enabled the Security temp/eval license but can not find a way to manage it.I have tried downloading the Cisco Configuation Assitant, but this errors with "Unsupported Device type"
License output and config outbout below (no WAN interface on 10.0.x is just internal testing WAN IP. This device is not yet directly connected to the internet.
cisco1941#show lic
Index 1 Feature: ipbasek9
Period left: Life time
License Type: Permanent
License State: Active, In Use
License Count: Non-Counted
[code]....
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Nov 15, 2012
I have 1x Cisco 6509 with Sup2 and MSFC2 and it is running on IOS (c6k222-jk9sv-mz.122-17d.SXB11). I have following policy map :
Policy Map VOIP
Class IP PHONE
priority percent 75
and the following command on each interface: service-policy output VOIP those configuration are working fine on SUP2 with MSFC2 but last week I tried to upgrade the SUP2 to SUP32 on the switch and upgrade the IOS to the latest version (s3223-adventerprisek9-mz.122-33.SXJ4) but when I try to put service-policy output VOIP on each physical interface I am getting the following error:
"Priority command is not supported in output direction for this interface" and when I try to add service-policy output VOIP on a V LAN interface I am getting following error:
MQC features are not supported in output direction for this interface. Will I need to change something after upgrading to SUP32..
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Apr 3, 2013
1. How I can manage those devices, the Switch and the router? What is the BEST SOLUTION to manage this devices?
2. I want to monitor the traffic on this environment, how I can do it? How I can monitor the traffic from customer A, Customer B, and my own LAN traffic, in terms of bandwidth that has passed throught my devices? Is it possible to monitor on MY LAN, or I have to monitor from the EXTERNAL switch?
3. How I can limit the bandwidth? I was trying to configure it using access list, with policy-map, etc....and limit this on each interface. [code]
The interface does not support the specified policy configuration and/or parameter values.Assigning a policy map to the output side of an interface not supported.With I few reading, I could see that the SWITCH 3750 doesnt support this configs.My INTERNET LINK is 30 Mbps, the ports on the Switch (WS-C3750X-48P-L) are Gigabit Ethernet.How I can limit the bandwidth here? For example, How I can limit a interface to 3Mbps..I was thinking about this:
- Limit the interface to 10Mbps: speed 10
- and limit the interface with 30% of this speed: srr-queue bandwidth limit 30
Does this work for both UPLOAD and DOWNLOAD?When the packets passes that 3Mbps limitation, will they be droped?
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Sep 6, 2012
For my Lan, I have created two Vlan; Vlan 10 = for Users and Vlan 20 = For Database Servers,There are 15 Lan computer/laptop and 5 SQL database server (Dell Server) connected through same 24 port cisco 2960 switch. Means, 15 + 5 port occupied.
I have applied access list on cisco switch to restrict communication between vlan 10 and vlan 20.But My main purpose to create two Vlan is not for any kind of communication or restriction. My main Purpose is that Users traffic do not distrub or choke or affect the Database servers. then what will i need to do for that is VLAN Concept is sufficient for my concern OR I will need to buy seperate Cisco Switch to connect 5 database servers OR Else ?
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Jul 6, 2011
I am currently configuring a number of cisco 2811 routers that require the BGP exterior routing protocol, however the IOS version (12.4) currently installed does not support the bgp protocol.After entering the commands into the cisco CLI 'protocol not in this image' is returned.
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Mar 10, 2011
I have a 2811 router with a 9 port switch module and a four port ISDN module. The ISDN Module is our connection to the outside world. FE 0/0 and FE 0/1 are connected to separate networks and both route our the ISDN connections.We are getting a new satcom system that consists of a modem, antenna control unit (ACU), and an antenna. The ACU and the modem communicate accross Ethernet and are generally hooked to a switch. Anything computer hooked to the switch can simply use the modem IP as it's gateway and be surfing the Internet without much hassle (just need the correct DNS addresses).I'd like the networks behind FE 0/0 and FE 0/1 to be able to route out the satellite modem for their Internet connection -- when the satellite is available. Is it possible to put two switch ports in a VLAN (one for the modem and one for the ACU), give the VLAN an IP in the same subnet as the modem and ACU, and then tell the router to route traffic out the modem IP address ?
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Oct 23, 2011
I have four 2811 routers with IOS 12.4(15)T installed. Embedded Event Manager was introduced in IOS 12.3(4)T, why do I not have it?! I've been at this for over a month, when I try to see the command 'event manager' I get Unrecognized command? According to all EEM documentation I can find, this should work on our machines!
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Jan 11, 2013
I have set up a 2811 with seperate VLANs for phones, and another for computers/printers. Fa0/0 is trunked to a 3560 switch, which has all end devices plugged in. I have enabled the IP Routing commands on both devices, and from advice turned off proxy-arp on the VLANs on the router (unsure if this is causing the issue). The setup is as follows
Computer VLAN = 192.168.20.0
Phone VLAN = 192.168.50.0
Both on the same subnet, along with a router loopback address in the same subnet, at 192.168.10.1.I am having an issue understanding why, but if I try to ping a phone from a PC it times out. Or if I try to type the phone's IP into an internet browser to get the phone's GUI on screen, it fails. This should not be happening as IP routing has been enabled on both, and everything is in the same subnet, correct? PC's can ping other PC's and network printing works fine. Phones register and operate fine, but the two VLAN's will not interoute.Furthermore if I try and ping the router's loopback from the switch, it fails. But the trunk is up and operational because DHCP and devices work within their own VLAN. If I try to ping end devices from the switch, it returns 100%. There seems to be an issue with the router looping the different networks together.
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Jan 4, 2012
i have 2811 router and i am coneccted via concole so i want to copy the 2811 ios to my PC is that possible?
how or give my the right decument to do this.
* idon't want to use TFTP becuse i have no ethernet connection to the router(only concole)
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Oct 31, 2010
[URL]The Cisco 2811 does not support the HWIC-4T1/E1 module. But, I installed HWIC-4T1/E1 on the 2811 running 124-24.T2.
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Dec 13, 2012
This is a 2811 rotuer running Cisco IOS Software, 2800 Software (C2800NM-SPSERVICESK9-M), Version 12.4(24)T3, RELEASE SOFTWARE (fc2) Not sure why this isn't working. Can see it expects to parse the command. Can see this device is vtp server. Can see other vlans were defined here.
Router(config)#vlan ?
accounting VLAN accounting configuration
ifdescr VLAN subinterface ifDescr
Router(config)#vlan 35
^
% Invalid input detected at '^' marker.
[code]....
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Jan 24, 2013
Just double-confirm that 2811 is compatible with HWIC-2FE based on your experience? Which IOS is compatible with HWIC-2FE? [URL]
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Aug 10, 2011
I am facing a problem on a 2811 router. The CPU is remaining around 60% and the router throughput is reaching at most 18 MB while according to the data sheet the 2811 maximum throughput is 61MB. I have checked the output interpreter in order to try and figure out the cause of the high CPU and to determine if it is affecting throughput but there are not processes consuming more than 10%. I have attached the show tech-support and the show process cpu history outputs.
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Jan 19, 2012
I currently have a 2811 and a LAN setup via a sub-interface FA0/1.3 and using a HWIC-AP I have a sub-interface dot11radio 0/1.5. I have them setup to work and surf the inet great, but I have recently been overly annoyed with the fact that the wifi cannot access windows shares on desktops and visa versa with the laptops.
The trick to make this happen is currently they are not on the same subnet. I know the answer is bridging the interfaces but when I do this using the simple commands:
bridge 1 protocol ieee
interface x & y
bridge-group 1
Although what should be simple has failed (good thing I tftp'd my working config). Here is my current configuration.
interface FastEthernet0/1.30
encapsulation dot1Q 30
ip address 192.168.3.1 255.255.255.0
[Code].....
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Feb 17, 2007
Whether Cisco has part number for the large fan in 2811. I know p/n for small fan is already there, but I can't find any for large one( I think it s fan 3).
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