We have been trying to isolate a vlan on a pair of stacked 3750G switches to eliminate any communication to that vlan from the other vlans in our network, but have not had any luck getting it to work. We tried setting up ACLs, but they did not seem ...
Forum Posts
I have a router that will not ping any addresses in the same network though when I do a sh is route, the next hop shows up a connected. Layer 2 traffic seems to be passing. And forgive me if I'm wrong, the information in the routing table is layer 3...
Cisco nexus 9k, are people still using the mgmt0 port for peer keep-alive? I also notice there are two mgmt0 ports on the back one rj-45 and the other sfp port, can both be used? One for mgmt and one for keep alive? I hate burning 10/25g ports for ke...
Hello everyone I am have some trouble getting a college practice assessment to work, i have the fly right now so maybe my brain is scrambled.I have missed something or done something stupid so please feel free to point that outIf anyone could help i ...
Dear Gents, i received the below BOQ along with the attached drawing. in your opinion which switches are suitable for each? BOQ1: POE switch 48 port 142NPOE switch 48 port36L2 Failover SW 48 port71L32 BOQ2: POE switch 48 port 20NPOE switch 48 port5L...
My understanding is that by default, PortFast is disabled on all switch ports and you can configure PortFast in two ways: per port and globally. If you configure PortFast globally, all ports that are operational as access ports automatically become P...
I had this issue several times now. All of a sudden all 48 port LEDs stop flashing and does not change when I plug in/out cables. The computer says the cable is connected but with an unspecified network, just like it doesn't get an IP. Plug out the p...
Hello Everyone, We have two voice gateways in remote location. We are able to get ping on this VG's Earlier we are taking access through putty, now we are unable to telnet those VG's.
Resolved! Basic network configuration
Hello,I've configured the below network using Class C addresses. Can someone help me in configuring the same using any Class A and Class B address?Ps- I'm very new to using Cisco Packet tracer.I've attached the file along with configuration details b...
Hi, I'm facing an issue with IGMP. I'm currently using a pfsense with igmp proxy, two switches with igmp snooping and a set-top box. Modem -> Pfsense (igmp proxy) -> SG300 (igmp snooping) -> SG350 (igmp snooping) -> set-top box When I start watching ...
so we have a stack of 8 x 2960X switches with te1/0/1 and 4/0/1 configured as trunked uplinks to our 4500X core (both using 10GBase-SR sfp's) , works fine no issues. We also have 3 additional 2960X switches hung off of gi1/0/50, 2/0/50 and 3/0/50 als...
Resolved! Memory Leak on 3850
Hi Guys, I recently read a field notice from Cisco regarding memory leak on 3850. Below are the details:FN -> https://www.cisco.com/c/en/us/support/docs/field-notices/703/fn70359.htmlBug Page -> https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvh8937...
Can't login to Mobile iOS Version 3.0 English Cisco Packet Tracer. My mobile phone is LG V20.After login to netacad appears to login to canvas PTmobile but without the "confirm button" there is only a "cancel button" without the ability to scroll the...
Hi, We're going to upgrade a core infrastructure at several locations (A, B and C). At each location 2 Nexus 5k are installed which are linked together via a VPC connection. The locations A and B are contain the same VLANs (streched VLANs) and locat...
Hi guys, I noticed the following strange thing on different layer 3 switches. The client requests an IP address but the switch is trying to relay it instead of sending ack. We're using 3750s mainly, one acting as the dhcp with routing activated. It p...
