LOL. We ALL know how that feels :-) On Wed, Jun 3, 2009 at 10:35 AM, Rob Routt <[email protected]> wrote:
> I'm a ding-bat. > > Thx Bryan. > > ------------------------------ > *From:* Bryan Bartik <[email protected]> > *To:* "Sealander, David" <[email protected]> > *Cc:* Rob Routt <[email protected]>; Kim Pedersen <[email protected]>; > prakash patel <[email protected]>; [email protected] > *Sent:* Wednesday, June 3, 2009 8:55:28 AM > > *Subject:* Re: [OSL | CCIE_RS] IPE vol2 lab 3 > > Rob, > > If you have 3 switches all connected to each other with etherchannels, STP > will still block. You will not see the physical port, but you will see the > whole port-channel blocked. Etherchannel allows you to utilize multiple > links between 2 devices, it doesn't de-necessitate the use of STP in your > entire topology. > > Bryan Bartik > CCIE #23707 (R&S), CCNP > Sr. Support Engineer - IPexpert, Inc. > URL: http://www.IPexpert.com > > On Wed, Jun 3, 2009 at 9:28 AM, Sealander, David <[email protected]>wrote: > >> If this is on proctor labs, make sure on r2 that port f1/1 is shut down, >> or that port f1/0 has no switchport command. >> >> >> >> David Sealander, CCNP >> Network Systems Engineer >> Frederick Memorial Healthcare System >> 400 West 7th Street >> Frederick, MD 21701 >> (240) 566-3768 >> >> >> >> *From:* [email protected] [mailto: >> [email protected]] *On Behalf Of *Rob Routt >> *Sent:* Wednesday, June 03, 2009 11:21 AM >> *To:* Kim Pedersen; prakash patel >> *Cc:* [email protected] >> >> *Subject:* Re: [OSL | CCIE_RS] IPE vol2 lab 3 >> >> >> >> Cat1#sh etherchannel summ >> Flags: D - down P - bundled in port-channel >> I - stand-alone s - suspended >> H - Hot-standby (LACP only) >> R - Layer3 S - Layer2 >> U - in use f - failed to allocate aggregator >> >> M - not in use, minimum links not met >> u - unsuitable for bundling >> w - waiting to be aggregated >> d - default port >> >> >> Number of channel-groups in use: 3 >> Number of aggregators: 3 >> >> Group Port-channel Protocol Ports >> >> ------+-------------+-----------+----------------------------------------------- >> 1 Po1(SU) - Fa0/19(P) Fa0/20(P) >> 2 Po2(SU) - Fa0/21(P) Fa0/22(P) >> 3 Po3(SU) - Fa0/23(P) Fa0/24(P) >> >> >> >> Cat2(config-if-range)#do sh etherchannel summ >> ! >> >> Number of channel-groups in use: 3 >> Number of aggregators: 3 >> >> Group Port-channel Protocol Ports >> >> ------+-------------+-----------+----------------------------------------------- >> 1 Po1(SU) - Fa0/19(P) Fa0/20(P) >> 2 Po2(SU) - Fa0/21(P) Fa0/22(P) >> 3 Po3(SU) - Fa0/23(P) Fa0/24(P) >> >> >> >> Cat3(config-if-range)#do sh ether summ >> ! >> >> Number of channel-groups in use: 3 >> Number of aggregators: 3 >> >> Group Port-channel Protocol Ports >> >> ------+-------------+-----------+----------------------------------------------- >> 1 Po1(SU) - Fa0/19(P) Fa0/20(P) >> 2 Po2(SU) - Fa0/21(P) Fa0/22(P) >> 3 Po3(SU) - Fa0/23(P) Fa0/24(P) >> >> >> >> Cat4(config-if-range)#do sh ether summ >> ! >> >> Number of channel-groups in use: 3 >> Number of aggregators: 3 >> >> Group Port-channel Protocol Ports >> >> ------+-------------+-----------+----------------------------------------------- >> 1 Po1(SU) - Fa0/19(P) Fa0/20(P) >> 2 Po2(SU) - Fa0/21(P) Fa0/22(P) >> 3 Po3(SU) - Fa0/23(P) Fa0/24(P) >> >> >> ------------------------------ >> >> *From:* Kim Pedersen <[email protected]> >> *To:* prakash patel <[email protected]> >> *Cc:* [email protected]; [email protected] >> *Sent:* Wednesday, June 3, 2009 8:06:14 AM >> *Subject:* Re: [OSL | CCIE_RS] IPE vol2 lab 3 >> >> Hi, >> >> And check out: sh etherchannel summary >> >> >> prakash patel wrote: >> > check out if gig link is active to STP!!!! >> > >> > >> ------------------------------------------------------------------------ >> > Date: Wed, 3 Jun 2009 07:50:38 -0700 >> > From: [email protected] >> > To: [email protected] >> > Subject: [OSL | CCIE_RS] IPE vol2 lab 3 >> > >> > Guys, I am having some etherchannel woes. I have the following >> configuration and have just rebooted the switches to see if that would help. >> The task is configure L2 etherchannel group on all switches for ports 19-24. >> So 19-20, 21-22, 23-24 channel-groups 1-3 respectively. I keep seeing >> spanning tree block when I had thought I would not see this if etherchannel >> is working correctly. I have configured and re-configured. I verified my >> configuration and re-booted out of frustration. Can you take a look and see >> if anything is obvious to you? >> > port configs on all switches: >> > interface FastEthernet0/19 >> > switchport trunk encapsulation isl >> > switchport mode trunk >> > channel-group 1 mode on >> > ! >> > interface FastEthernet0/20 >> > switchport trunk encapsulation isl >> > switchport mode trunk >> > channel-group 1 mode on >> > ! >> > interface FastEthernet0/21 >> > switchport trunk encapsulation isl >> > switchport mode trunk >> > channel-group 2 mode on >> > ! >> > interface FastEthernet0/22 >> > switchport trunk encapsulation isl >> > switchport mode trunk >> > channel-group 2 mode on >> > ! interface FastEthernet0/23 >> > switchport trunk encapsulation isl >> > switchport mode trunk >> > channel-group 3 mode on >> > ! >> > interface FastEthernet0/24 >> > switchport trunk encapsulation isl >> > switchport mode trunk >> > channel-group 3 mode on >> > for example on cat 1 >> > Fa0/19 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/20 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/21 connected trunk a-full a-100 >> 10/100BaseTX >> > Port Name Status Vlan Duplex Speed >> Type >> > Fa0/22 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/23 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/24 connected trunk a-full a-100 >> 10/100BaseTX >> > Gi0/1 disabled 1 auto auto >> 1000BaseSX SFP >> > Gi0/2 disabled 1 auto auto >> 1000BaseSX SFP >> > Po1 connected trunk a-full a-100 >> > Po2 connected trunk a-full a-100 >> > Po3 connected trunk a-full a-100 >> > Cat1#sh spann block >> > Name Blocked Interfaces List >> > -------------------- ------------------------------------ >> > VLAN0010 Po2 >> > VLAN0020 Po2 >> > VLAN0030 Po2 >> > VLAN0040 Po2 >> > VLAN0050 Po2 >> > VLAN0060 Po2 >> > Number of blocked ports (segments) in the system : 6 >> > cat 2 >> > Fa0/19 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/20 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/21 connected trunk a-full a-100 >> 10/100BaseTX >> > Port Name Status Vlan Duplex Speed >> Type >> > Fa0/22 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/23 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/24 connected trunk a-full a-100 >> 10/100BaseTX >> > Gi0/1 disabled 1 auto auto >> 1000BaseSX SFP >> > Gi0/2 disabled 1 auto auto Not >> Present >> > Po1 connected trunk a-full a-100 >> > Po2 connected trunk a-full a-100 >> > Po3 connected trunk a-full a-100 >> > Cat2#sh spann bloc Name Blocked Interfaces List >> > -------------------- ------------------------------------ >> > VLAN0001 Po2, Po3 >> > Number of blocked ports (segments) in the system : 2 >> > cat 3 >> > Fa0/19 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/20 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/21 connected trunk a-full a-100 >> 10/100BaseTX >> > Port Name Status Vlan Duplex Speed >> Type >> > Fa0/22 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/23 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/24 connected trunk a-full a-100 >> 10/100BaseTX >> > Gi0/1 disabled 1 auto auto Not >> Present >> > Gi0/2 disabled 1 auto auto Not >> Present >> > Po1 connected trunk a-full a-100 >> > Po2 connected trunk a-full a-100 >> > Po3 connected trunk a-full a-100 >> > Cat3#sh spann blo >> > Name Blocked Interfaces List >> > -------------------- ------------------------------------ >> > Number of blocked ports (segments) in the system : 0 >> > cat 4 >> > Fa0/19 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/20 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/21 connected trunk a-full a-100 >> 10/100BaseTX >> > Port Name Status Vlan Duplex Speed >> Type >> > Fa0/22 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/23 connected trunk a-full a-100 >> 10/100BaseTX >> > Fa0/24 connected trunk a-full a-100 >> 10/100BaseTX >> > Gi0/1 disabled 1 auto auto Not >> Present >> > Gi0/2 disabled 1 auto auto Not >> Present >> > Po1 connected trunk a-full a-100 >> > Po2 connected trunk a-full a-100 >> > Po3 connected trunk a-full a-100 >> > Cat4#sh spann block >> > Name Blocked Interfaces List >> > -------------------- ------------------------------------ >> > VLAN0001 Po1 >> > VLAN0010 Po1, Po3 >> > VLAN0020 Po1, Po3 >> > VLAN0030 Po1, Po3 >> > VLAN0040 Po1, Po3 >> > VLAN0050 Po1, Po3 >> > VLAN0060 Po1, Po3 >> > Number of blocked ports (segments) in the system : 13 >> > Didn't think spanning-tree would ever affect etherchannel like this, at >> least from a blocking sense. I have done other configs where stp put the >> port in err-disabled, but none of my ports are errored out as you can see.. >> > thx guys. >> > Rob Routt >> > >> > >> > ------------------------------------------------------------------------ >> > Insert movie times and more without leaving Hotmail®. See how. < >> http://windowslive.com/Tutorial/Hotmail/QuickAdd?ocid=TXT_TAGLM_WL_HM_Tutorial_QuickAdd_062009 >> > >> >> -- >> // Freedom Matters >> // Follow my progress on: http://kpjungle.wordpress.com >> >> >> > > > > -- > > > -- Bryan Bartik CCIE #23707 (R&S), CCNP Sr. Support Engineer - IPexpert, Inc. URL: http://www.IPexpert.com
