Switching

C6800-16P10G currently has all 10G SFP connection. one of them required to change to 1G for particular task.    Cisco doc says this module support: 16 ports—Sixteen 1G ports, or sixteen 10G ports, or four 40G ports   Would like to know if it can supp...

Hello,I'm looking at putting in some WIC-1ADSL cards into a 2821 router. Iwould need to put in 6 of them, but the 2821 only has 4 onboard slotsand I was wondering if the NM-2E2W is compatible with a 2821 router soI can add the last two?ThanksDan.

I have a Nexus 5548 switch that has HSRP configured on several of its VLAN interfaces.  This switch also has a routed interface for a point-to-point link to a remote site.  The routed interface is *not* configured for HSRP, however, HSRP hello packet...

I have a L2 switch feeder two smaller switches.  I got a report one of the switches was down this AM and I did a shut/no shut on the port.   It showed up as "connected" when I first did a sh int status, and now the port is showing vlan 1 and not conn...

Hi , We are planning to upgrade our existing Core_Switch (2x3750 Stack) . So please help me to get the correct alternative of the existing one. Please give a comparison between 3850 Vs 9300 series...

Hi,   i configure a SG500x-48-P Gigabit Switch. Now i'd like to connect the switch with glasfibre to our internal Network. Whenever i put the SFP-Modul (SFP-10G-SR) to XG1 or XG2 shows no reaction. The status led doesn't work and port is allready dow...

Hi -    Have a 385048T with a 4GB module installed. One Fibre SFP is never recognised in port G2/1/3. Same SFP works in port G2/1/4 (a Cisco 100MbaseFX SFP) and is shown in "show inventory"as being present.   We've replace the SFP, the 4Gb port modul...

I have a switch configured with 802.1x and MAB authentication. I have enabled MAB on ports where devices don't support 802.1x with supplicant and x.509 certificates. However the switch some times fails to learn the MAC address of the devices that are...

Can two Cisco L2 switches (one managed by us - other one managed by client) use different L2 vlans numbers in between the access link to connect and pass traffic? 

Hi all,we have 2901 router and we installed HWIC-4ESW on slot 0 .the card is shown on command ""show inventory"" but it is not shown on command ""show run "" so i can not configure it.the ios on router >>>>>Cisco IOS Software, C2900 Software (C2900-U...

im hoping i can get some direction with my issue. i have installed 4 ie 2000 switches two 4 port, one 8 port and one 16 port. my four port switches are working fine with the fiber uplink but my 8 and 16 port swithces dont seam to get any uplink activ...

Has anyone got a template to use for a Cisco 800 router that will be configured with BGP on the WAN side and 192.168.10.0/30 on the LAN side. LAN just needs to get out to the BGP network via NAT.  Anything appreciated. Regards,

 Hi Guys, I have a request to propagate one VLAN (multicast enabled) around an underground REP ring.   is there any concerns with multicast and REP . Is this going to be an issue? Any advice on this would be great.   Thanks