Switching

Hey Guys have an issue with dhcp snooping static binding. any help appreciated. i have 3850's , and for some reason ARP ACL's dont work. we added static dhcp snooping entries, and works great. 1) ip dhcp snooping binding x.x.x.x command 2) user is...

I've enabled DHCP on my SG300-52.  It seems to work with all clients other than the AT&T Microcell 3G.  When the microcell first powers on, it attempts to get an IP address via DHCP.  However, the SG300 logs the following: %DHCP-W-SRVALLOC: DHCP Serv...

Hi, We recently purchased some NX93120s and CAT 3850s for one of our data centers. We also purchased Cisco QSFP to SFP+ adapters to interface the NX9Ks 40GB interfaces to the 3850s 10GB. The connection seems to sort of come up, but nothing is getting...

I have several point to point links running LDP and OSPF. I was curious what would be a recommended mpls ldp igp sync holddown timer to configure on these links. I know its a best practice to have on there in case there's a convergence issue. What's ...

Hi, we have Cisco Catalyst 4500 Series Switch at our distribution layer with VSS configuration, problem we faced last time is our second switch in VSS goes down all the devices connected with the switch got disconnected but the switch is power up and...

We have a 2900 router and currently has 10mb download limit. It is a remote site ( The MD's home)This has internet connection and also a site to site vpn. The VPN traffic is very light and is used for RDP sessions with the office. The problem we have...

HI Guys,facing an interesting issue with ICMP redirect it seems.In my office, we have a router with several Public IP address , among which these two: x.x.x.118 ( which I see from inside when running "what is my IP " in google) and x.x.x.115 which is...

Hello I need to configure flexible netflow in L3 port-channel interface at WS-C3850-12XS  IOS Version 16.3.3, but it,s not possible. MG_CORE(config-if)#ip flow monitor Netflow-Monitor-In input % Flow Monitor: Failed to add monitor to interface: flexi...

Hi, I'm new into multicast and I got a setup to do, we have already a multicast running on our Catalyst 6500 VSS. But recently we need to peer with a customer and get a multicast from him using MSDP, BGP and PIM. First, I would like to somehow "isola...

Good day.I'm  using c3560 as agregation level router of my networkpool of device ip's are exchanging with core via ospf router ospf 5router-id xxxxarea 0 authentication message-digestnetwork xxx.1 0.0.0.0 area 0network xxx 0.255.255.255 area 0 there ...

Greetings, I have 2 sg300-10pp switches that i want to know if i can have them communicate with one another. How can i do this? 1st switch is 10.10.5.12ns switch is 10.10.6.1 how can i confiure them so they can communicate?

I have 5 - C2960X-48FPS-L switches recently installed and we are seeing random network link drops thoughout the network on a daily basis. Sometimes it's the same port, sometimes it's a port that has never bounced before. We are seeing this across all...