We have several SG500X running as access switches in our office. Now one of them has to be expanded because we need more ports. I basically know how to build a stack with new SG500x, but though I double-checked the adminguide and read tons of discu...
I upgraded my cable connection to 200mbps. I have an ASA5506x with a 3550 switch. When I connect a PC or laptop direct to an ASA port I get full 200mbps. But when I connect to one of the ports on the 3550 speed gets reduced to only 100mbps. I tried ...
hi, We are currently seeing an issue where our CUBE dial-peers is configured to use TCP as the transport between a SIP call tester and the CUBE, but seems to switch to UDP when sending a BYE to end a call. All other messaging between CUBE and call ...
I In the above scenrario i can ping from one computer to another but not able to do from the switch to any host .. There is a mac address table Also, My arp table is empty. Please help Regards
Hi everyone! Using the ASR920 (3.18.01.S) we have both DHCP Snooping and ARP Inspection running and we often get these kind of entries in the system log: Jan 18 07:28:02 gmt: %SW_DAI-4-DHCP_SNOOPING_DENY: 1 Invalid ARPs (Req) on BD262, vlan 262.(...
We enabled DHCP snooping 2 weeks ago on one of our switch stacks. Now since the database is built up and we pre-programmed any static bindings and trusted ports, today we turned on arp inspection. I'm having an issue with 3 Windows 7 machines seem...
has anyone experienced and issue upgrading from 3.3.05 to 3.6.6 or 3.7 on a 3850 stack. When I try, the code will tfpt to master, however when I try to software install, get and error fail to install.
The PoE light on my 2960X switch is flashing amber. When I check the system messages this is what I get. The system messages keep saying debugging every minute or so. Description: Interface Gi1/0/15Power Device detectedIEEE PD Explanation: not ava...
Hello, I have VSS configured between two 4500 X, connected using OM4 and SFP 10G-SR, i have the following message %SFF8472-5-THRESHOLD_VIOLATION: Te1/1/1: Rx power low warning; Operating value: -11.2 dBm, Threshold value: -9.9 dBm. Thanks in ad...
Hi all, I have my switches / routers that I cant access via ssh, if I go via telnet I dont have any issue. I created a new ip domain-name , a new rsa and still the same. I created a new rsa but still the same issue. show ip sshSSH Disabled - versio...
Hi All, We have a stack of 3 switches which are on the below IOS Switch Ports Model SW Version SW Image Mode ------ ----- ----- ---------- ---------- ---- * 1 56 WS-C3850-4...
Hi, We have a c3850 in our data centre with a fibre 1 Gbps layer-2 link to a remote site. We are seeing output drops on this interface at random times in the day, in the past 24hrs there have been nearly 2,000,000 drops and users are reporting slow n...
Good afternoon Everyone, Im an exchange admin by trade, and taking the cisco plunge to help our company grow into their new location they have just bought. Issue: Currently i am able to access everything (RDP, Ping, File Share, and Printing) intern...
Hello all, Does anyone know if it is possible to request a specific DHCP adddress from the DHCP server on Cisco switches? (15.0.2 C3750V2) Gareth
Trying to wrap my head around a recent problem. For the past five days, we have a single SG 500 switch that is powering off and performing a cold startup daily. It happens every 24 hours on the dot. I checked the logs and I don't see any errors - I w...
