I got a wierd question. I currently have an odd situation and am wondering what the reprocussions are to changing a subnet mask on a vlan. I have a core switch with an interface VLAN 5 which is 172.20.0.1 255.255.0.0This VLAN happens to be for all o...
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Forum Posts
I'm hoping someone can point me in the right direction. We are going to be expanding our Shoretel phone system in our HQ and I need to get QoS configured correctly. All of our offices are connected via MPLS and I need to make sure that we are sendi...
Resolved! IP Routing Command Issue
Hi All, We just ran the 'ip routing' command on our 3750x switch stack remotely and .. lost connectivity to the switch. All devices seem to be on and connected so we think the switch is still up, but can anyone tell us what happend? Why can't we ss...
OSPF calculates cost for link based on bandwidth such as10/100/1000. If I were to confgiure rate shaping such as confgiuring bandwdith of 20Mb on our WAN links, will OSPF calucalte for this. I think I should just configure the cost manually for the...
Resolved! DHCP Server Backup using Cisco IOS
Hi,I have a requirement where there is a need to use Local DHCP Server when there is a WAN failure (Small site connected by a Single WAN link)Setup: Client ---- Switch ---- Router ---- WAN ----- Centralized DHCP Server. There is only 1 L3 device on r...
Resolved! Avaya phone switchport config
Since Avaya phones do not run CDP, how does the phone know which DHCP pool to pull from to get its IP address if the PC is connected to the phone.Let's say I have a interface config like thisinterface gigabitethernet1/0/1cisco3750(config-if)#switchpo...
Hi all,We have a setup of 2 Nexus 7000 chassis and several fexes (N2K-C2248TP-1GE). The fexes are connected through a port-channel to a single nexus 7000 (no vpc). (Fex 1 to Nexus 1, fex 2 to Nexus 2, fex 3 to nexus 1 etc).Are there guidelines on how...
Resolved! Site-to-Site VPN through EVPL Issue
I have been tasked with creating a VPN tunnel between our site and a vendor's support center. I successfully created the tunnel, which negotiates fine, but I can't seem to get the traffic flowing properly. The issue that I think I am having is that...
Buenos dias, quisiera saber sus aportes ante el presente casoTengo la siguiente configuracion en los Cisco Catalyst 37501.- Son dos Switch Cisco Catalayst 3750 en Stack2.- Estas son las VLANs creadas,interface Vlan1 description PRODUCCION ip address ...
Resolved! Private VLAN Configuration Question
Hello Community,In my CCNP studies I am learning about Private VLAN's. Toward the end of the discussion there are direction on how to configure the Private VLANs, and although most of it seems pretty straight forward I am very confused on one part of...
Hello,Suppose I have 20 remote sites each connected to a metro ethernet provider with a simple layer 2 vpn back to a single "hub site".The hub site is where 99% of resources are (app servers, internet access, etc.). So the actual traffic flow will b...
Does the 3750me support subinterfaces? I tried to configure one but received an error:interface GigabitEthernet1/1/2no switchportno ip address!ts-metro#conf tts-metro(config)#int gi1/1/2.9 ^% Invalid input detected at '^' marker.t...
Yesterday everything work perfectly. I rebooted my router and the Windows Internet Connection Sharing system and now I cannot get out to the Internet from my router on the 192.168.30.0 network. My router's interface gi0/0.30 has an IP of 192.168.30...
Discussion between networks and the server guys about VMotion needing it's own physical NIC. Most of our ESXi 5.1 servers have six 1Gb NICs in a trunk passing all Vlan's across that trunk. Supposedly a VM guru has said that best practice is to have...
Hello,I have a problem with dscp preservation on a WS-C3750X-48 catalyst; in my little diagram, his name will be SW2, so I have this:SW1 <-> SW2 <->RT1some phone connected to SW1 mark with dscp EF (46) the voice trafficThe "mls qos" was enabled on SW...
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