Are these 3750 or 3750E? Either way:
Performance between each switch is 32Gb or 96Gb. If you use Gig-E to connect them you only get 1G :) That shiny silver cable does much more than a Cat6 or a fibre. One virtual device to manage as opposed to two Short version, stacking is much easier to manage and gets better performance over the stackwise cable Cheers, Matt CCIE #22386 CCSI #31207 On 14 April 2010 12:08, Patrice Ngassam <[email protected]> wrote: > Hi Dear friends of Networking ! > I am facing a dilemma between stacking switches or use them as standalone > devices. Is there any real network performance increase when switches are > stacked together? If I have 2 3750 switches at the access layer, what kind > of network performance gain I obtain with when they are configured as stack? > > Patrice Ngassam > Ceritified Cisco CCNP, CCDP, CCIP > > > > > ________________________________ > Date: Sun, 28 Mar 2010 17:11:46 -0400 > From: [email protected] > To: [email protected] > CC: [email protected]; [email protected]; [email protected]; > [email protected]; [email protected]; > [email protected] > Subject: Re: [OSL | CCIE_RS] BGP design question > > Not so much a threat as just an oddity. We strive so much to have our > networks evolve to a self-healing method. We build in redundancy so that WE > do not NEED to do all the work. Let your network work for you. And here's > someone who wants to work for the network. ;) > > Patrice Ngassam wrote: > > You are very funny Scott, I was also chocked when the customer told me that > manual switchback was his requirement. Why is it strange for you? Is it a > threat for network design best practices? > > Patrice Ngassam > Ceritified Cisco CCNP, CCDP, CCIP > > > > > ________________________________ > Date: Sun, 28 Mar 2010 16:58:17 -0400 > From: [email protected] > To: [email protected] > CC: [email protected]; [email protected]; [email protected]; > [email protected]; [email protected]; > [email protected] > Subject: Re: [OSL | CCIE_RS] BGP design question > > Which this would most certainly cover his strange requirement of manual > switchback. > > On the other hand, could we run like IOS 10.3 or something? i seem to > recall that more things were less automagical back then! (smirk) > > > > Scott > > Marko Milivojevic wrote: > > Now, expanding on this we need solve additional requirement from the > original post. How to prevent peer from coming back up. Well, for that > we could probably use EEM. Let's take a look. > > event manager applet DISABLE_PEER > event routing network 2.2.2.2/32 type remove > action 10 cli command "enable" > action 20 cli command "configure terminal" > action 30 cli command "router bgp 1" > action 40 cli command "neighbor 2.2.2.2 shutdown" > action 50 cli command "end" > ! > > Enabling peer on R2. > > R1#sh ip bgp sum > BGP router identifier 1.1.1.1, local AS number 1 > BGP table version is 1, main routing table version 1 > > Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ > Up/Down State/PfxRcd > 2.2.2.2 4 2 6 5 1 0 0 > 00:00:37 0 > > Killing the interface on R2 here. > > *Mar 29 01:33:59.679: %TRACKING-5-STATE: 1 ip sla 1 reachability Up->Down > *Mar 29 01:33:59.683: %BGP-5-ADJCHANGE: neighbor 2.2.2.2 Down Route to peer > lost > *Mar 29 01:33:59.747: %SYS-5-CONFIG_I: Configured from console by on > vty0 (EEM:DISABLE_PEER) > > -- > Marko Milivojevic - CCIE #18427 > Senior Technical Instructor - IPexpert > > YES! We include 400 hours of REAL rack > time with our Blended Learning Solution! > > Mailto: [email protected] > Telephone: +1.810.326.1444 > Fax: +1.810.454.0130 > Web: http://www.ipexpert.com/ > > On Sun, Mar 28, 2010 at 17:05, Marko Milivojevic <[email protected]> > wrote: > > > On Sun, Mar 28, 2010 at 17:00, Narbik Kocharians <[email protected]> wrote: > > > Totally understand that, but i did not see any mention of OSPF or ISIS. > > > Enjoy. > > R1: > > interface Loopback0 > B ip address 1.1.1.1 255.255.255.255 > ! > interface FastEthernet0/0 > B ip address 12.12.12.1 255.255.255.0 > ! > ip sla 1 > B icmp-echo 12.12.12.2 > B frequency 5 > ! > ip sla schedule 1 start-time now life forever > ! > track 1 ip sla 1 reachability > B default-state down > ! > ip route 2.2.2.2 255.255.255.255 12.12.12.2 track 1 > ! > route-map Neighbor-Alive > B match source-protocol static > ! > router bgp 1 > B neighbor 2.2.2.2 remote-as 2 > B neighbor 2.2.2.2 update-source Loopback0 > B neighbor 2.2.2.2 ebgp-multihop 2 > B neighbor 2.2.2.2 fall-over route-map Neighbor-Alive > ! > > R2: > > interface GigabitEthernet0/0 > B ip address 12.12.12.2 255.255.255.0 > ! > router bgp 2 > B neighbor 1.1.1.1 remote-as 1 > B neighbor 1.1.1.1 ebgp-multihop 2 > B neighbor 1.1.1.1 update-source Loopback0 > ! > > Notice what happens on R1 as soon as I shut down the port on R2 (there > is a switch between them). > > *Mar 29 00:59:19.679: %TRACKING-5-STATE: 1 ip sla 1 reachability Up->Down > *Mar 29 00:59:19.683: %BGP-5-ADJCHANGE: neighbor 2.2.2.2 Down Route to peer > lost > > > -- > Marko Milivojevic - CCIE #18427 > Senior Technical Instructor - IPexpert > > YES! We include 400 hours of REAL rack > time with our Blended Learning Solution! > > Mailto: [email protected] > Telephone: +1.810.326.1444 > Fax: +1.810.454.0130 > Web: http://www.ipexpert.com/ > > > Blogs and organic groups at http://www.ccie.net > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html > > > > > > > > > > > ________________________________ > Télécharger en toute sécurité sur Internet ? La solution avec Internet > Explorer 8 > > ________________________________ > Télécharger en toute sécurité sur Internet ? La solution avec Internet > Explorer 8 > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
