From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sat, 6 Nov 2010 21:26:40 -0700 From: Stephen Hemminger Message-ID: <20101106212640.6d88c5d3@nehalam> In-Reply-To: References: Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: quoted-printable Subject: Re: [Bridge] DHCP problem on bridge List-Id: Linux Ethernet Bridging List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Kian Yang Liew Cc: Liew Kian Yang , bridge@linux-foundation.org On Sun, 31 Oct 2010 00:31:11 +0800 Kian Yang Liew wrote: > Dear All, >=20 >=20 >=20 > I have a network with 500 vlan and I bind all these 500 vlan into 1 bridge > interface. Then I have run a dhcp server on this bridge interface to prov= ide > dhcp to all the computer in the vlan. It look find all the time, but > sometime, some of the computer on vlan will not able to get the ip from d= hcp > server but after I remove the vlan and add back to the bridge it will work > again. The most serious case is sometime there will be a dhcp problem on > vlan 1 as well, and I need to reboot the server only can make the service > back to normal. >=20 >=20 >=20 > The setting is as below >=20 >=20 >=20 >=20 >=20 > Vconfig add eth1 2 >=20 > Vconfig add eth1 3 >=20 > . >=20 > . >=20 > . >=20 > . >=20 > . >=20 > .vconfig add eth1 500 >=20 >=20 >=20 > Then ifconfig eth1.2 up =85. Ifconfig eth1.500 up >=20 > Then brctl addbr br1, brctl addif br1 eth1.2 =85=85. Brctl addif br1 eth1= .500 >=20 >=20 >=20 > Does anyone have face this problem before? Your reply is highly appreciat= e. >=20 brctl stp br0 off brctl setfd br0 0