Hi, I've faced up a issue on 136 Cisco SPA504G with firmware 7.5.2 and 7.5.4, which I wish  to share with you in order to get help from you. In one moment, we started to receive claims from our users who were saying " they couldn't dial nor received any phone call".  We verified our  Asterisk PBX and we realized that there were 136 extensions in "unreachable" state. So, we entered into the some  web service of the phone and we could see its registration state was "Registered" and its next registration in was "0s". But the PBX saw them as "unreachable". We checked the LAN conection between them and the PBX, but didn't find any problem.  The only way for recover this situation was unplug and plug the power all the phones.   Have you experienced a similar issue ?, How can I prevent a new issue? Regards Rodrigo ... View more

Hi,      I have been having problem to set up STP among switches, as i whish it were. The topology is  this, The way that all this is working is i would like it working in this way I've reviewed de Bridge ID so that, Switch A has lowest BI, and switches C and D have de same highest BI. Then,  the path cost between switch C and D has a cost higher than the link againts Switch B. But i can´t block the link between Switch C and D. The strange thinks that i saw, were       > Swicth D has not BI and Address.       > Switch C has as STP ROOT de BI of Switch D I would be gratefull if you could helpme or leadme to fix this issue. Regards ... View more

Hi,      I've been trying to set up a trunk between a SF-300 and 3560 without success, in spite of i've been sticking to the manual "Cisco Small Business 300 Series Managed Switch Administration Guide Release 1.2.7". So, i wonder if any of you could help me with this issue. Into the Cisco Catalyst 3560 I configured the following commands, interface FastEthernet0/29 description Puesto de PruebaVLANs power inline never switchport trunk encapsulation dot1q switchport mode trunk speed 100 duplex full and as result of this i have SBSTRCPCO01#sh int trunk Port        Mode         Encapsulation  Status        Native vlan Fa0/29      on           802.1q         trunking      1 Po1         on           802.1q         trunking      1 Port        Vlans allowed on trunk Fa0/29      1-4094 Po1         1-4094 Port        Vlans allowed and active in management domain Fa0/29      1,167,201,418,500 Po1         1,167,201,418,500 Port        Vlans in spanning tree forwarding state and not pruned Fa0/29      1,167,201,418,500 Po1         1,167,201,418,500 into the Cisco SF-300 I configured these commands, vlan database vlan 2,418 ! interface vlan 418 ip address 10.0.18.10 255.255.254.0 no ip address dhcp ! interface vlan 1 name Default no ip address dhcp ! interface fastethernet1 switchport mode access ! interface fastethernet2 switchport mode access switchport access vlan 418 ! interface gigabitethernet3 speed 100 no negotiation switchport trunk allowed vlan add 418vlan database vlan 2,418 ! interface vlan 418 ip address 10.0.18.10 255.255.254.0 no ip address dhcp ! interface vlan 1 name Default no ip address dhcp ! interface fastethernet2 switchport mode access switchport access vlan 418 ! interface gigabitethernet3 speed 100 no negotiation switchport trunk allowed vlan add 418 So as result of all this configuration, - I can ping  the PC which is connected to fastethernet1 (Native VLAN ID 1 ) - I can ping  the managment interface (On interface vlan 418). - but,  I can´t ping the PC which is connected to fastethernet2 (VLAN ID 418) It's like the VLAN ID 418 wasn't propagated into the switch from the trunk interface gigabiteethernet3, which is a tagged, to the interfase fastethernet2, which is untagged. So appreciate any clue which it help me to fix this problem. regards so appreciate any clue which it help me to fix this problem. regards Rodrigo ... View more