Hi All Today i got error message from access switch, it comes up with %SPANTREE-SP-2-BLOCK_BPDUGUARD: Received BPDU on port FastEthernetx/x with BPDU Guard enabled. Disabling port. %PM-SP-4-ERR_DISABLE: bpduguard error detected on Fax/x, putting Fax/...

After I read cisco email security ordering guideline(https://www.cisco.com/c/en/us/products/collateral/security/email-security/guide-c07-736692.html), I had some question about L-CES-O365I-LIC license already include cisco domain protection(DMP) feat...

When I download file from server that behind firewall (FWSM Firewall Version 3.1(5)), download speed is very slow but upload speed is normal. - Source port = random port , Destination port = 80 - File's size = 15-40 MB. - I have already tested speed ...

I need some help from you, I found problem that some clients cannot connect to AP( but some client can connect as normal). As I checked from logs, I see a lot of messages as below:Nov 18 01:13:55.760: %DOT11-4-MAXRETRIES: Packet to client 0023.68be.1...