Hi, While I am getting Vlan Flapping on LAN network and seeing regular logs on my core switch - 2. I tried to troubleshoot but not able to succeed. Below is the details attached for understanding and support needed. I have attached network diagram a...
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I have problem on some PC in when I change LAN port to another port. I can get IP address from DHCP Windows Server but receive packet on PC is 0 byte and show unidentified network. Please help me to investigate this problem. I tested set Vlan to ...
Recently, our switch 3750 switch seems like its dead. It will not let me console in, and after i restart, the SYST light blinks for a few seconds then goes solid green... the switch will not respond... HELP!!!
Resolved! IP cache Flow egress on 4321
I have recently upgraded our routers from 2811 to 4321 series. Both running advanced IP services. I can't seem to get IP cache flow working on the interfaces. The configuration I had on the 2811 was ip cache flow egress/ingress. The 4321 doesn't ha...
Hi Everyone, Good Day! I have a problem regarding showing the mac add table on C2960X. Please see below result. When you check the ports Gi1/0/47 all mac add is pass through on this port wherein this is the trunking port. I don't why it show on the...
Resolved! vlan between three sites
Hey guys I have been away for quite some time so I can be called novice at least right now. I wanted to connect three different sites in the same vlan is that possible?
Can I uplink one N2k 2248PQ to two upstream N7K using one QSFP–4SFP10G cable, or does the upstream switch have to be one N7K? Nexus 7K's are running 7.2(2)D1(2)
Hi, I am trying to upgrade the ROMON on one of the 6509 redundant device. The current config shows as below MYDEVICE>sh rom-monitor slot 5 rpRegion F1: APPROVED, preferredRegion F2: INVALIDCurrently running ROMMON from F1 region MYDEVICE>sh rom-monit...
We have a C2960S switch that has developed flash corruption, apparently due to a power outage.It says the boot image is bad, leaves me at a "switch:" prompt. My only option appears to be to delete the corrupt boot image, and upload a replacement.The ...
Resolved! GRE Over IPSec with EIGRP
Resolved! basic Nat not working
Good Day. i am having an issue with nating from a local devices to devices on the other side of the internet. In the NAT table it show that the address is being translated but local all it says that the destination host is unreachable. the config...
I cannot boot this router for the life of me. I am stuck in rommon. The image is there: rommon 1 > dir bootflash: 0 0 drw- lost+found 0 0 drw- .prst_sync 0 0 drw- .installer 0 0 drw- core 0 ...
We have a weird issue in our Network. Some devices are getting huge bandwidth and some are getting very slow irrespective of the wired or wireless. Even if I take the laptop which i get slow speed and connect it to the port where we get high bandwidt...
Hi all, I've been searching for long related with 4500E Supervisor Engine 8-E Uplinks port mode. Is there any specific command to configure the port mode between 1 GE and 10 GE? Or, inserting SFP will make it 1G, inserting SFP+ will make it 10GE? H...
Hi,Please I want to find out if it is possible to use all uplinks ports on the 8 port Sup8-E modules configured as a redundant pair on a single 4510R+E chassis?I noticed that only 4 ports are active on each sup8-E modules (making it a total of 8 port...
