Cisco WAN :: Qos With 3560 As Hub
Jun 19, 2011
We have a 3560 on our head office acting as an aggregare switch as well as Hub terminating remote wan links(one trunk link from provider terminated on FE port with several SVIs for remote location) and routing via OSPF. We have 1800 series at remote locations.
Now, If I want to prioritize say SQL traffic outbound from our head office to each remote brach I cant seem to do it with 3560 as it says... cannot apply service policy out blah blah.
How can I achieve my goal with 3560, Is it a good design to use 3560 as a Hub? our port utilization isnt that much..Wouldnt it be better to use 1800 or 2800 series?
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Jun 26, 2011
We have cisco 3560G switch I need to configure QOS in this switch. video & vice Is it possible to configure port wise policy ?
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Jul 8, 2011
I have a cisco cat 3560 and the present IOS is 12.2(46)SE and i want to upgrade the IOS to 12.2(58)se1.As there is only 8mb of frees space i cant straightly copy the new IOS on the switch. Any convenient way to Upgrade IOS.
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Jun 6, 2012
We have a problem with our WS-C3560V2-24TS running IOS c3560-ipservicesk9-mz.122-53.SE2.bin. The equipment keep dropping packets for no apperent reason.
This is what we are seeing:
LAN-port
Router0#sh interfaces fastEthernet 0/2 | include drops:
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 20595
WAN-port
[Code]....
We are shaping the gig uplink to 100Mbps, the equipment is dropping pakets randomly and not because the shaper kicks in and starts to drop pakets.
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Jan 25, 2012
I am trying to see how can configure MQC in Etherchannel. I know that i need to do this in the memeber physical interfaces of the etherchannel.The etherchannel is a trunk port allowing few VLANs. SVIs are created in the switch for this VLANs as well. tell me where i need to apply the QOS ? Is it under the member physical interfaces ?.
What will happen if QOS applied under the SVIs?
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Nov 6, 2011
I connected the AP [1140 - Version 12.4(21a)JA1, RELEASE SOFTWARE (fc1)] to the switch (3560) and the switch with the WLC (5500 series), but I get the below error:
*Nov 7 09:07:59.916: %DTLS-5-SEND_ALERT: Send WARNING : Close notify Alert to 192.168.10.22:5246
*Nov 7 09:07:59.954: %CAPWAP-5-CHANGED: CAPWAP changed state to
[Code]....
The access point cannot join the controller. Is this a misconfiguration at the WLC or something else?
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Apr 1, 2012
my current network setup is like this.. a cisco 3560 is connected on an access port to an adjacent dlink stack. i want to enable trunking between the cisco and the dlink. what i know is that dlink doesnot support per vlan STP while dlink only run single instance of the STP.. how can i make the trunking possible without messing with the network.
the idea that i have is to run MSTP instance on the 3560 so that it appears as a single STP to the dlink switch and then all good. is there any other way to do that. if i just make both the adjacent ports on both the switches as trunk and connect them, will it cause any problem in terms of STP issues or convergence ?
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Aug 8, 2011
how can i upload IOS in Switch when it is in ROMMAN Mode , its show IOS in flash but may pe Corrupt, show how can i put New ios in Switch 3560.
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Jun 10, 2011
have a problem with my 3560 Series PC gets a dhcp of the switches but not on the Internet?
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Apr 28, 2013
My HO is connected to BOs over MPLS Links.The links are terminated on routers but i dont have access on those routers as it is maintained by the ISP.Behind of the HO router there is s 3560 switch. Can i configure this switch to prioritize some traffic over the WAN link to the BOs.
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Apr 22, 2011
can i use normal two L3 Switch(3560) for BGP Multihoming with 2 different isp
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May 28, 2013
By default there 2 input queues. 2nd is priority queue and has 10% of link assigned. Weights for two queues are 4 and 4. For example we have 1Mbps link. ANd we also have saturated link with voice and other traffic. Will voice get 550k bandwidth? As I undestood 100k is assigned to voice strictly. Remaining 900k is evenly divided by two queues according to 4 and for ratio.
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Apr 1, 2012
I'm working on a new network design for my company. We're expanding and opening some more offices and satalite sites. We're a UK based company but opening some US sites.We have a main UK office (Office A on the diagram) a call centre (Office B) and then two buildings on another site (Office C). The USA offices will be very small and only require a couple of computers, hence the small IP allocation. I have marked the IP addresses of the links on the diagram, I intend to use 3560 switches for all the switches marked and all links will be layer 3 to route multiple VLANs from each site to each site (where permitted). question is this: How do I achieve this in the switches? I'm thinking that OSPF is the way forward, is this right? I want to do as little configuration on the switches as possible to allow for dynamic updates of the network (i.e. I don't want to add static routes for everything).
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Mar 25, 2012
If i have 3 x 3560s do i need 3 cables connect one to each other then the top one to the bottom one - like the 3750s stacking stacks -- or is it just one cable between each device no cable between top and bottom
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Jun 26, 2011
How to configure SLA monitoring in 3560 switch. I have 2 DSL links terminating in switch and want to do WAN failover. I know how to do in ASA and router. I found IP SLA and track commands on switch but don't know exactly how to use them.
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May 1, 2012
I want to upgrade a Catalyst 3560-48PS to the last IOS.I get an errormessage stating that there is insufficient space in flash: I have deleted all files in flash - but I still get the same error message. According to the documentation there should be enough memory. Messages are pasted below:
Switch#dir
Directory of flash:/
No files in directory
15998976 bytes total (15997952 bytes free)
Switch#archive download-sw tftp://192.168.9.13/c3560-ipservicesk9-tar.122-55.SE.tar
Loading c3560-ipservicesk9-tar.122-55.SE.tar from 192.168.9.13 (via Vlan9): !!!!!!!
[OK - 15964160 bytes]
Loading c3560-ipservicesk9-tar.122-55.SE.tar from 192.168.9.13 (via Vlan9): !!!!!!!!
examining image...
extracting info (109 bytes)
[code]....
Error: There is insufficient space in flash: to install the required
Error: image. Clean up some old images, and try again.
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Jul 13, 2011
The traffic flow on the network is fine, but we are not able to access our remote locations.Using the example in that thread:Let's use your example. If your Vlan interfaces are configured on the 3560:
interface Vlan10
description LAN A
ip address 10.20.102.1 255.255.255.0
interface Vlan 104
description LAN B
ip address 10.20.104.1 255.255.255.0
Device A has his default gateway set to 10.20.102.1 (interface Vlan10) and device B has his default gateway configured to 10.20.104.1 (interface Vlan104). If device A (10.20.102.55) wants to talk to device B (10.20.104.25), the traffic would have been routed on the 3560 between Vlans 102 and 104.
As for DHCP, if there is a server on a separate network (let's give the DHCP server an ip: 192.168.2.15) you would configure an 'ip helper-address' on each vlan, which will forward each DHCP Discover broadcast to the DHCP server as a unicast packet. This is done because by default the router (3560) will not forward broadcasts.
interface Vlan10
description LAN A
ip address 10.20.102.1 255.255.255.0
ip helper-address 192.168.2.15
interface Vlan 104
description LAN B
ip address 10.20.104.1 255.255.255.0
ip helper-address 192.168.2.15
Now lets say LAN A and LAN B are located in SITE1. A second site, SITE2, has the address of 10.20.128.1. I can't ping the Site2 location from the LAN B (10.20.104.x) segment in Site1. I think I should set a static route on our switch with something like this:
ip route 10.20.0.0 255.255.0.0 10.20.102.10
The address 10.20.102.10 would be a wan router in this example.
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Nov 9, 2011
Our HQ Location dont support high bandwidth pipe served by ISP, so will go ahead with 3 different ISP at 2MB each.Goal is to provide Email / Application access to Remote office using site to site VPN.In Total will have 10 to 15 Branch offices each with around 25 to 35 users
Each ISP will give
/29 subnet of public IPCopper Interface for WANdefault Gateway and Two DNS server IP will be provide Existing hardware we got are Cisco 2821 Router with 2 FastEthernet ports ( not in use )24 port switch 2900 series ( not in use ) Can we use the above hardware to terminate all 3 ISP link and use the Router for site to site VPN.
Our Lan Core is Cisco 3560 which is uplink to 3X2950 user switch?how should we terminate the link and use each ISP for VPN.
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Jul 25, 2012
We have the configuration below set up in a 3560 switch (addresses and names modified for privacy). We are running out of dynamic IP’s in the current pool (6.35.159.0 – 6.35.159.255). We have a new set of IP’s that we can use (6.44.56.0 – 6.44.57.255 – an additional 512 addresses). Although I can figure out the commands to add a new dhcp pool, secondary subnet, etc., I’ve never done this before so I’m not sure of everything I need to do. The end result I need is that the 3560 needs to be able to hand out IP addresses from the current and new pool to anything connecting to vlan 300 – our datanet where computers access the Internet. What I need to do as far as modifying the vlan, adding the secondary subnet, defining helper IP’s, gateways, whatever, so that computers connecting via vlan 300 have Internet access via either of the pools? I have been told that all I need to do is create the pool, but not sure if that is correct...
[code]....
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Apr 17, 2013
I have a question regarding QOS and possibly dedicated bandwidth. The environment is ISP goes into an ASA that up links to a 3560 and fiber up links to other 2960s throughout the building for internet. My question is for certain sections of the building if I segment the network can I guarantee them a certain amount of bandwidth. For example, if 1 gigabit is coming into the building from the ISP and into the ASA, can I guarantee one room in the building no less than say 200 Mb of the full internet pipe at all times?
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Aug 22, 2011
Here is my basic network layout for multicasting for Syn-apps
Multicast Source-->3750 SW (add PIM SM-DM? Yes/No)-->3845 WAN Router (add PIM SM-DM? Yes/No)-->T1-->2821 (add PIM SM-DM? Yes/No)-->3560 SW (add PIM SM-DM? Yes/No)
OK, in this is it necessary to configure "IP Multicast-routing" on the switches? Do I configure PIM on all interfaces that will handle multicasting (router and switches?) If PIM is enabled on the 3750 do I need PIM configured between the 3845 and the 2821 ? Do I configure the Auto-RP on the 3750 or the 3845 ?
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Nov 30, 2011
have few doudts on MIB file upload.
1) What will be the extension of MIB file ? *.mib or *.my
2) I am running with 12.2(25)SEB IOS .Is thre any dependency with IOS for downloading MIB file.
3)I have 3560 switch and 2960 switch. Is thre any difference in the MIB file extension.
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Mar 21, 2013
which option do you think is better? The idea is to use them as the core of the network,to route between several VLANs.
Options:
1 - Two 3560 with HSRP
2 - Two 3750 stacked with cross-stack etherchannel to the access switches
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Jul 6, 2011
I have the following scenario. Connected to a Cisco 3560 switch (fa0/9) is another Cisco switch (that is operating at layer 2). On the other side of that second switch is a firewall. I want to send traffic from my Cisco 3560 switch to a network behind the firewall. [code] However, when I try to add the ip address to int fa0/9, I get an error. Right now, the 3560 is operating at layer 2. I think that I need to issue the command: "ip routing" to put it in layer 3, then put the ip address on port fa0/9. However, I am concerned that I will mess up my production environment. Is there any other way of doing this? The "ip route 0.0.0.0 0.0.0.0" statement sends traffic out the gateway to the Internet. I just want to send packets to 209.52.62.16/28 out int fa0/9.
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Jul 8, 2012
I Do want know what could be best Device to prioritize Skype Traffic i mean should i implement it on Cisco 3560 or squid or Mikrotik according to my current scenario to get best result.Also do Let know how to Prioritize Skype Traffic in Cisco 3560 Switch
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Jul 24, 2012
I am using Cisco 3560 POE -WS-C3560CG-8PC-S- switch for my AP's. The current IOS i got on this switch don't allow me to use web console. when i am click on webconsole i am getting attached. what is the best way of removing and installing new IOS.
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Jul 18, 2011
Is it possible to configure multiple ISPs in 3560? and These ISPs traffic should be forward different vlans & different ports. i need configure port wise DHCP also and using different ip addresses please, which device supports this application
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Dec 17, 2011
I am looking for The latest IOS Available for cisco 3560 Series Switch, User guide for the same And All Supported features specification Guide.
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Jul 13, 2011
I am having LMS 2.5 and nearly 50 cisco 3560 in my network. And I want to configure rcp. How can I do it.
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Dec 14, 2011
Looking for Information about Latest IOS Available for switch Series 3560, Guide the latest IOS sopprted Features Specification And Also Guide the Switch Minimum Hardware capacity Require to upgrade with the latest IOS.
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Oct 7, 2012
I am trying to upgrade the IOS in 3560 but I am facing one issue. Its flash is 15MB & available space is 8MB whereas the IOS is of 11MB. How can I upgrade the IOS without upgrading the flash?
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Mar 9, 2013
why getting temperature event in 3560 switch, and we checked the Network room Temp it's normal around (22).
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Feb 28, 2011
I am facing problem in my setup which includes cisco 3560 and cisco 2811 router.Actully I am ruuning BGP in 3560 l-3 switch.Some of the customers are connect to 3560 switch via 2811 router,all of those customer having same rate-limit.Some of the customers are directly terminated in 3560 switch where i configure vlans,all vlans has different rate-limitsPROBLEM:I need to do nating to surf some of the ips only for one customer on the 3560 switch.so i m using route-map using acl on switch and doing natting on router.Using route-map i m redirecting traffic to my routers loop back interface, where i m doing natting and send it back to the switch.
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