Connectivity Providers Database

Date: Sun, 6 Feb 2005 19:35:57 +0100 (CET) From: Gabriel BOMBAMBO <gbombambo@yahoo.fr> To: Dale Smith <dsmith@network-services.uoregon.edu> Cc: Mohammad Maleki <malekim@network-services.uoregon.edu>, Dale Smith <dsmith@network-services.uoregon.edu>, Steven G. Huter <sghuter@nsrc.org> Subject: VLAN problem resolved On Thu, 3 Feb 2005, Gabriel BOMBAMBO wrote: > > Bonjour Steve, > > > > J'ai quelques difficultes pour des configurations des VLAN avec des > > Catalyst Cisco 4506 et 2950. > > > > J'ai 6 Catalyst 2950 dote chacun de 2 ports gigabiEthernet et un > > Catalyst 4506 dote de 6 ports gigabitEthernet. Les 6 switches 2950 > > sont relies au 4506 par la fibre optique. > > > > On m'a demande de creer 7 Vlans repartis dans tous les switches. Sur > > le 4506, les VLAN communiquent sans problemes mais dans les autres > > switches les Vlans pas de trafic et aussi entre les 7 switches, le > > trafic ne passe que entre par sVLAN d'administration qui sont les > > VLAN 1dans chaque switch. > > > > On me dit que je peux activer l'echange au niveau du switch 4506 qui > > fait le VTP server. > > It looks like there are several possible problems. > > First, the trunk ports on the 4605: > > interface GigabitEthernet4/1 > switchport trunk encapsulation dot1q > switchport trunk allowed vlan 1,20 > > I would also add a line > > switchport mode trunk > > However, the above configuration means that this port will only carry > traffic for vlan 1 and 20. Vlan 10, 30, 40, 50, etc will *not* be > carried on this trunk. I think to get this part to work right, you need > all vlans on all trunk ports. Something like > > interface GigabitEthernet4/1 > switchport trunk encapsulation dot1q > switchport trunk allowed vlan 1,10,20,30,40,50,60,70 > switchport mode trunk > > You'll need the same on the 2900's as well. > > I'm not familiar with the 4605's, but on our cisco 6500's, to enable > routing, you need to do a: > > vlan 20 > name drhvlan > state active > media ethernet > > before you do the > > interface Vlan20 > description drhvlan > ip address 172.16.4.1 255.255.254.0 > no ip redirects > > Give that a try to see if that helps. > > Thanks, and good luck, > > -Dale Bonjour Steve et Dale, Sincerement merci ! Tout passe bien maintenant juste apres ajoute des numeros comme Dale l'avait indique. A juste, j'ai configure 18 commutateurs avec 7 locaux techniques. Thank a lot of for your help, Dale. All traffic are transmitted now from any VLAN to any VLAN. Once more, thanks to you, Mohammad, Jose and my friend Steve. Internet over all bounds between the countries !! Gabriel =============================================== Gabriel BOMBAMBO Boseko Department of Mathematics and Computer Science Faculty of Sciences P.O. Box 190 Kinshasa XI /Democratic Republic of CONGO Tél: 00243 98 13 16 57 E-mail: gbombambo@yahoo.fr, bombambo@unikin.cd