Switching

network improvements ?

Hello, I have put together this network as part of a project. I am trying to think of ways of improving the network design.My first idea was to use CAT6 or optical fibre on the trunk links in Main Building LAN between switches (wihch is comprised of ...

SonicWall VLAN Problems

Hello All,We have a SonicWall NSA 4500 here in our building and use all Cisco Layer 3 Networking. Our core is a Catalyst 4506 and our switches are all Catalyst 3550s and 2950s.I am trying to deploy about 12 SonicPoint NDRs, and would like them to bo...

871 stops working (part 2)

Guess this is continuation of>>> https://supportforums.cisco.com/message/3339646#3339646but as it was marked as "ended" ... I want to open a new one.My Cisco 871w still stops working once a week.Today I found it frozen, after the weekend, and I have...

Switch port high utilization

hi , i am faiz working as network eng ,in my network we use all cisco 2960 switches, problem is when someone copying 4gb data or high from one switch to another switch, by that time rto (Request time out) is comming. ...

Resolved! IP base & IP services stackable switches

Hi,I'm building a wired closet to aggregate user's connections, Im planning to have 5x 3750X stacked switches and there is a need to run EIGRP, I'm thinking to order one switch with IP service image while the rest will run IP base image, is it workab...

Resolved! redistributing routes rip into ospf

Hello, I just want to confirm my understanding of how route redistribution works.For instance, you have a router that is running OSPF on one interface (LAN) and the interface (LAN) on the opposite side is running RIP. You want to enable the RIP route...

etherchannel and user traffic

Hi everybody.Here I am again with another silly scenario.If one of the link in etherchannel goes down, then Pagp or LCAP simply shifts the load from failed link to other active links in etherchannel.The question is should we expect the same behavior...

MACFLAP_NOTIF

MACFLAP_NOTIF: Host e41f.13fa.a55d in vlan 1 is flapping betwe en port Gi0/17 and port Po1Getting these logs on server farm switch connected to 4500 switch through ether channel Any ideas how to fix this issue.

Resolved! Private VLANs on FEX

Hello *,regarding PVLANs and the Nexus, my understanding is that we cannot configure Private VLANs on a FEX trunk port with a NX-OS release older than 5.1(3)N2(1) for the Nexus5548... Is there any known workaround for this limitation (appart from per...

Resolved! How Layer 2 switch works without default gateway

Hi Everyone,4500 switch is connected to 2960 switch.4500 configVlan 10 name DataIt has ip helper configured that points to DHCP.From 4500 switch port - port x connects to 2960 port.Port x is configured as trunk between 4500 and 2960.*************...

Using variables in Cisco IOS

I have many sites that I would like to be able to program uniformly using simple copy paste function, but each site uses in a diffrent ip scope making it challing without the use of variables. For example, If I had two layer 3 switches each in a dif...

module showing unknown in cat 6500

Hello everyonewhen I do a show module in my cat 6509, the standby sup is saying unknown, it has the same IOS as the primary card.what does this mean?are there any tests I can run on the card?cheersCarl

Resolved! Switch http GUI no more on IOS latest version?

hi, anyone know that why there is no more http or https for the switches newer version? Switch mode: WS-C2960-24TC-L OLD IOS: c2960-lanbasek9-mz.122-44.SE6.bin NEW IOS: c2960-lanbasek9-mz.150-1.SE3.bin Switch model: WS-C2960S-48TS-L OLD IOS: c2960s-u...

ESW540 - disable port security

We have an ESW540 at a customer site that I need to know the best way to disable totally all port security. The default config blocks more than 3 computers from passing which breaks things like WAPs but also servers with dozens of IPs. They're runn...