Switching

multicast issues using symantec ghost application over 3850 cisco switch

Hi Team, we have a Symentac Ghost application using which I am trying to do a multicast of an image to some users who are on same switch. However, it is unsuccessful. the same is successful over different site 3850 switch. I am unsure if there is ...

3850 Stack Swapping Switch Type

Hi, We have a 3850 stack that has 2x 3850-48T and 1x 3850-48P. We want to remove the 3850-48P and replace it with a new 3850-12X48U, this will have the 8x10G module, the existing 3850-48P has a 4x10G module. How do we achieve this when the switch...

Stack member switch 3750X in a booting loop!

Hi Guys, Last week I tried to upgrade our edge 3750X switch (two switches in a stack), from c3750e-universalk9-mz.152-2.E.bin to c3750e-universalk9-mz.152-4.E5.bin. Previously I copied the new IOS to both flash: and flash2: from TFTP, ran command '...

Resolved! C3850-NM-4-10G question

Hi guys, I have a 3750x switch with C3KX-NM-10G network module. Currently it has 2x1Gb and 1x10Gb uplinks to other floors. Now I need to add another 10G uplink to a new floor. As I understand the C3KX-NM-10G can only support upto 1x10G and 2x1G upl...

3750x doesn't boot after upgrade to version15

Due to a problem with POE+ i have tried to upgrade the IOS to Version15.0.2SE2, from 12.2.58. unfortunatly the Switch doesn't boot up anymore. It starts to decompress and install the IOS 2 Times, after the Second try it displays "unable to boot" and...

connecting nexus 5000

how to secure ports on the nexus 5000

Internal Vlans in N7K

I did a 'show internal vlan usage' on a N7K and this is what I got. SW1# show vlan internal usage VLANs DESCRIPTION------------------- -----------------3968-4031 Multicast 4032-4035,4048-4059 Online Diagnostic ...

Connecting an AXA Core fax bridge with a Cisco RV325

Trying to set up a network for a small business. They have a all in one (scanner, Printer, Fax), a Cannon ImageRunner Advance. The company that installed it informed the business owners that they need to use a AXA Core Fax Bridge in order to make t...

4G LTE Failover Configuration

Ok so we're putting up a small branch and wanted to install 4G LTE failover. I have a single 4451 wanting dual ISP links. At our other small branches we've just had another router doing DMVPN with EIGRP. We want to do DMVPN with EIGRP over the 4G t...

Bizzare ghost mac / looped IP phone

Setup: 2960x-48fpd-l used as access switches, strictly L2. Ports have data and voice vlan configured, mab, portfast, bpduguard enable, error recovery 300s Occasionally a user will connect both the network and pc port of the phone to drops. This lea...

Output Queue Drops - Interface Shutdown

We were having some issues with massive amounts of dropped packets showing in the OQD column of the "show int summary" command output. The interface was part of a port-channel, along with another port, but only this interface was showing these drops...

Resolved! Wifi spanning multiple floors

I am looking to span my wifi across multiple floors, so that users do not lose connectivity as they move around the bldg. Layer 3 in nexus, layer 2 is meraki. I have close to 1000 devices I need to support on this. I do have multiple /23's at my disp...

Resolved! Port pair

Hi all, can anyone explain for what is used a Port pair? I found this function in our CISCO DCM GBE Card. Manual says that port pair means 2 physical interfaces working as one virtual. Ok but how it is workig? What if i have 2 gbe ports in port p...