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Hello Everyone, I have a problem that VLAN100 created is accessible for a very short period of time, and then simply stop working. So, if I go to config to VLAN100 interface, do 'shutdown' and 'no shutdown" right after, computer connected on one of t...
Hello All, I have problem pinging VLAN's defined on master switch which is VTP master. On switch itself, I can ping VLAN gateways, but on two connected switches, I can't. Switches are connected through 1Gb SFP, ports are trunked on all 3, all VLAN's ...
I resolved the problem. Turned out that problem was firmware - C3750E-UNIVERSALK9-M), Version 15.2(1)E, RELEASE SOFTWARE (fc3) When I flashed C3750E-UNIVERSALK9-M), Version 15.0(2)SE9, RELEASE SOFTWARE (fc1), everything started working as it should. ...
I am now very close to think that is some firmware flaw, or similar. Version of IOS that is installed only on main swithc and one of slave switches is (C3750E-UNIVERSALK9-M), Version 15.2(1)E, RELEASE SOFTWARE (fc3), all others have (C3750E-UNIVERSA...
I guess that problem is here (grabbed from Wireshark): 4 1.771557 10.1.5.2 10.100.1.88 ICMP 74 Echo (ping) request id=0x000f, seq=37918/7828, ttl=127 (no response found!)5 1.771704 CableMat_03:32:12 Broadcast ARP 42 Who has 10.100.1.1? Tell 10.100.1....
Hello Paul, I did applied all four suggested config changes. All four switches are Cisco, all four are C3750-48-PoE, Primary one is lanbase license, one of slave switches is also lanbase, other two are ipbase Topology:(Firewall)--(Main Loc Stack C375...
Hello Joseph, No, it is disabled. VTP Version capable : 1 to 3VTP version running : 1VTP Domain Name : JordanVTP Pruning Mode : DisabledVTP Traps Generation : DisabledDevice ID : 6c41.6a0f.0800Configuration last modified by 10.1.5.254 at 5-12-11 00:...
