Switching

Hi, Weird title but here goes, We have two 5k's they are linked to each other via their respective management ports, we will call them switch-a and switch-b. Attached to these are two routers (not Cisco) both routers have a leg into each switch as be...

I was reading through some of the documentation available on the support forum where i found some interesting differences. It was posted some where that  Ethernet II frames have 8 bytes of Preamble while IEEE 802.3 Frame has 7 bytes of Preamble and t...

Hi to all, I am getting high ping response while pining to core router from any node. generally it should be 1 ms in wired network or in between 30-40 on wireless network or radio devices. the response goes to 25 ms and in the wireless devices it is ...

I have an iscsi appliance attached to the nexus 7k and port on the appliance is set at 9216. but when i ping from the switch to the appliance with  # ping 10.60.1.106 packet-size 9216 c 20PING 10.60.1.106 (10.60.1.106): 9216 data bytes9224 bytes from...

Hi:  Does svi's mac address auto changed after switch reboot ?

Hello all, I am facing a strange issue on newly installed 3650 switch - this acts as a core switch and is connected to a 2811 router which is terminating multiple IPsec tunnels on one side (ip mtu set to 1400) and to 2 Dell 8024 10Gig switched on an...

According to EOS/EOL announcement http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-3560-x-series-switches/eos-eol-notice-c51-736139.html , the "End of SW Maintenance Releases Date: HW" date is 30 Oct 2017.  Currently, I'm using Cisc...

I configured 7301 router to internet and was able to pinging several DNS address ex: 8.8.8.8 with success. on router  g0/1 configured IP address 10.0.0.0 255.255.255.0 on switch  g1/1 configured IP address 10.0.0.2 255.255.255.0 Switch setup with IP ...

Question from a CCENT practice quiz. I understand why R4 cannot communicate to the 125 network through R3. R3's Gi0/2 is configured as a passive RIPv2 interface and will not send routes/updates to R4. But since passive interfaces in RIPv2 accept and ...

Hi,  I was always using QoS to limit the bandwidth of interface.  And got an issue on my Catalyst 2960G switch. Once I've applied the QoS, the host connecting to the port(I've found the issue on G0/9) will be disconnected. However, this QoS works go...

Hello I have a 3945 integrated router. On a separate server I am trying to monitor the status of all the interfaces via SNMP through the ifTable. I am running into an issue of trying to obtain status of interfaces on the switch. From my understandin...

I have two switches connected with two trunk links. On the first switch spanning tree is switched off. On the second switch, MST is turned on. Ports configuration is as follows: interface Ethernet0/2 switchport trunk allowed vlan 2-4 switchport trun...

Hi all, this will likely become a longer one... We have quite a large network with more than 130 switches, some of them not always online but always more than 100. We have about 50 Vlans but still a lot of devices in Vlan1. We do not have any routers...