Switching

The QSFP-SR4 GBIC uses a BIT-SPRAY over 4 fiber pairs within a 12 fibre MPO connector. to equally spread BITs around all 4 fibers pairs. While for the QSFP-BiDi, cisco talks about 2x 20Gbps transmit and receive channel to enable an aggregated 40-Gbps...

Hello,we have a vpc domain of 2 N7K with each with 2 N7K-SUP1 . When i want to add a vlan i´get the following message. It happens only at one of the N7K. Switch(config)# vlan 1408Service not responding Any idea? Regards Horst

Current Scenario:- Firewall is connected to a switch and that switch is connected to other switches in piggy backing scenario, there are no only 2 vlan, native and vlan20 with 30 hosts, all other 250 hosts are in native plan.  All hosts have firewall...

Hi all, I want to create a unidirectional Link between two catalyst 4500X. Switch 1:interface TenGigabitEthernet1/1 unidirectional receive-onlyendSwitch 2:interface TenGigabitEthernet1/2 unidirectional send-onlyend   Problem:Switch 1 --> Port notconn...

Hi,I've got two layer 3 switches, each of which have their own set of vlans and hosts, the network ip range however is totally different on both switches. I've created a trunk and etherchannel between the two switches, and can communicate across both...

Hi,Does anybody know if Cisco support multi-auth option with MAC Address Bypass? If it does, how many host is the maximum limit on one port? Thanks!

Hello. I'm having some issues deploying multicast in the network for a client requierement. The logical topology is as follows.   PE: ASR1006. CPE: C2921. The problem is that the user at the vigilancy desk can not see the camera's images when he set...

Hi allI have a Network with 2 Subnets (2 DHCP servers) , Cisco Switch and a Cisco 861 Router.On the Router Fa 4 (WAN port) is connected to the ADSL lineAll other 4 ports which are layer 2 ports I need to achieve inter vlan routing I have created 2 SV...

hi all,i've got a cisco 3925 which has only one site-to-site VPNs terminated.we always encounter packet drops but checked bandwidth isn't congested.there's no high CPU but observed memory is always high.the router has 2GB memory installed.i've checke...

We have a C6509，have a WS-X6748-SFP，show power，Oper State：off (not supported)：  NJ-GL-ASW-2.YPT.C6509#show powersystem power redundancy mode = redundantsystem power total =     2771.16 Watts (65.98 Amps @ 42V)system power used =      1590.54 Watts (3...

We are attempting to install a 3rd party (Juniper 100GBASE-ER4) 100G optic into a Cisco A9K-2X100GE-SE os Ver 5.1.1.  We are trying for a good loop back test however it keeps failing.  Does anyone have expertise in this area of getting a 3rd party SF...