Cisco WAN :: 2 WS-C3550-24-EMI Enough For Ccnp Switch 642-813
Dec 21, 2010Is buying 2 WS-C3550-24-EMI enough for the ccnp switch 642-813 (+GNS3)???????? (real switches can be connected to GNS3 right ?)
View 1 Replies
ADVERTISEMENT
Cisco WAN :: WS-C3550-24-SMI Suitable For CCNA-CCNP
Jul 4, 2012I'm looking to sit the ICND2 exam soon and have discovered that the pair of old 2924XL switches are not going to cut the mustard for the newer vlan commands and other features.
Would a pair of WS-C3550-24-SMI switches be a sensible replacement for ICND2 and possibly up to CCNP? They are available on ebay for about £80 each.
WS-C3550-12T And WS-C3550-48-EM / Fiber Switch Uplink
Jul 4, 2011I notice that my Cisco switches have 2 fiber GBIC ports on them each and while i have been around networking for quite some time i have never dug that much into fiber. So after some quick googlefu i learned that there is lots of different types and compatibility problems.
The 2 switches i would like to connect are a WS-C3550-12T and a WS-C3550-48-EM.From what i have read these are 1000-base-fx?
Cisco :: CCNP SWITCH 642-813 OCG - Page Missing?
Sep 1, 2011I'm reading the SWITCH OCG for the second time now, and I noticed page 210 is completely missing: it's a duplicate of page 212. I'm still wondering why I didn't see it the first time I read it.
View 8 Replies View RelatedCisco :: CCNP - STP Root Port Election Example?
Jun 23, 2012I am currently working on an example for a CCNP Spanning Tree Protocol example.I have some lectures on video and getting confused with an example they have provided. It has me baffled as I have compared it against numerous other websites, trawled forums and tried to get other examples to compare it against.Anyway, I have posted screenshots of the topology. They are as follows:
1) topology showing links so can assign costs (100mbps = STP cost 19, 1000mbps = STP cost 4)
2) topology show priority and MAC addresses (priority left at default so root bridge elected by lowest MAC address)
3) topology showing elected root ports **which I do not agree with for switches E & F**
4) topology showing subsequent blocked ports **which I do not agree with for switches D & F, even if I accepted the previous given root port election*** I understand for same cost paths to root bridge that lowest bridge ID wins. So here are my queries:
1) switch E has 2 equal cost paths to root bridge (A):
-via: E > D > A (4 + 19)
-via: E > C > A (4 + 19)
so I think pick the next hop switch with lower bridge ID. Switch C right? In this example it says pick port going to switch D. I am confused! Why pick port going toward switch D?
2) switch F has 2 equal cost paths to root bridge (A):
-via: F > C > A (4 + 19)
-via: F > D > A (4 + 19)
so I think pick the next hop switch with lower bridge ID. Switch C right? In this example it says pick port going to switch D. I am confused! Why pick port going toward switch? tell if the example in the diagram (topology 3) is wrong? If it is correct explain why?Now on to issue number 2...If I accept the root port election given in the topology, I go through the process of assigning designated ports and blocked ports.I understand for each link there is at least 1 designated port. If it is a redundant link, one side will be designated, one side blocked. The designated port will be on the side of the lowest bridge ID (priority + MAC address). So here are my queries:
1) there is a redundant link between switch C and switch F
-one side must be designated
-one side must be blocked
-pick the side with lowest bridge ID (priority + MAC address) for designated port
-switch C has same priority as switch F, so based off MAC address, switch C wins i.e. designated port on switch C side, blocked port switch F side.
-In this example it says port from switch C is blocked and port from switch F designated. I am confused! Why pick port going from switch F as designated?
2) there is a redundant link between switch D and switch C
-one side must be designated
-one side must be blocked
-pick the side with lowest bridge ID (priority + MAC address) for designated port
-switch C has same priority as switch D, so based off MAC address, switch C wins i.e. designated port on switch C side, blocked port switch D side.
-In this example it says port from switch C is blocked and port from switch D designated. I am confused! Why pick port going from switch D as designated?
Cisco Switching/Routing :: ARCH V2.1 For CCDP After CCNP?
Jun 26, 2012I have completed BSCI and BCMSN is less than 3 years old. I am CCNP certified. My question is, when I pass my ARCH v2.1 exam, can I still be certified as a CCDP?And CCDP ARCH with Exam code and Exam fee of CCDP ARCH exam ?
View 7 Replies View RelatedCisco :: Can Entire CCNA / CCNP Sec Track Be Emulated In GNS3
Nov 14, 2012I'm reading the CCNA Sec book (554) and I've just finished a few chapters on CCP.Is the tool free? Can it be simulated in PT, or emulated in GNS3? Speaking of which, can the entire CCNA/CCNP Sec track be emulated in GNS3?
View 6 Replies View RelatedLatest IOS For Windows C3550 12g
Apr 9, 2012What is the latest ADV IP IOS for ws c3550 12g?
View 3 Replies View RelatedCisco WAN :: Minimize The Buffers On Catalyst WS-C3550-12T
Feb 8, 2012Howto minimize the buffers on Catalyst WS-C3550-12T to absorb 50ms to 100ms of PCoIP traffic according to:
[URL]
Cisco Switching/Routing :: How To Upgrade C3550-24-EMI
Jan 20, 2012process of upgrading IOS image in this particular switch to c3550-ipservicesk9-mz.122-44.SE6.bin.
SW1#sh version
Cisco Internetwork Operating System Software
IOS (tm) C3550 Software (C3550-I5Q3L2-M), Version 12.1(11)EA1, RELEASE
[Code]......
Cisco Switching/Routing :: Ws-C3550-24-Emi Memory Upgradable?
Nov 3, 2011i have a Ws-C3550-24-Emi switch and i need to upgrade its flash memory to 32Mb. I couldn't find any documents in cisco website about the memory upgrade guideline. Possible to upgrade this switch to 32Mb? If so, what's the max of memory i can upgrade? and the part number for this type of memory?
View 4 Replies View RelatedCisco Switching/Routing :: C3550 - IP SLA Not Recovering After Failover
Jan 9, 2013Here iis a diagram of my current lab where I am using IP SLA to automatically switch from ISP 1 to ISP 2 should the connection go down (and vice versa)
My switches are C3550 Layer 3 switches. Both ISP's do work so connectivity is not the problem.
If I shutdown the fa0/19 port on SW1 the SLA kicks in and changes my defualt route out 10.0.1.0 without a problem. And when I do a no shut it comes back to tge 192.168.10.0 netowrk just as we would expect. No problem there.
When I disconnect the ISP 1 cell phone the SLA does switch the defualt route to the 10.0.1.0 netowrk. Okay, just fine so far. Here isthe problem, when i reconnect the cell phone the SLA does not come back to the 192.168.10.0 netowrk without first having to delete the SLA and then recresting it (both switches).
Cisco Switching/Routing :: WS-C3550-48 Adding A Separate Subnet
Jan 14, 2013We have two switches; a WS-C3550-48 and a WS-C3548-XL connected via fiber uplink ports. Both switches are on the same subnet 192.168.1.0 /24. I would like to change the subnet of the second switch, WS-C3548-XL, to be on 192.168.2.0 /24. Would it be possible to assign 192.168.2.x IP addresses to both uplink ports to achive this?
Or would I need to create a separate VLAN and assign both GigabitEthernet0/1 uplink ports to this VLAN?
Cisco Switching/Routing :: IP Address DHCP Command Not Available On C3550
Nov 19, 2011I'm trying to configure my C3550 with fast ethernet port 0/48 assigned to vlan 2 in static access mode and SVI vlan 2 configured as dhcp client.
But I see command ip address dhcp is not available on interface vlan 2:
Cat3550(config-if)#ip ad
Cat3550(config-if)#ip address ?
A.B.C.D IP address
Cat3550(config-if)#ip address
Could it be a problem related to the version running on the equipment (see below the output of sh version command not sure of what EA1 stands for)? I read here [URL] that this command was introduced in version 12.1(2)T
If it is a version problem is there any possibility to download upgraded version for free?
Cat3550>sh ve
Cisco Internetwork Operating System Software
IOS (tm) C3550 Software (C3550-I5Q3L2-M), Version 12.1(20)EA1, RELEASE
[Code].....
Cisco WAN :: MLS C3550 - Unable To Find Tclsh Command / Computer Address
Jan 2, 2013I believe that I should have started with this issue because I cannot run tclsh on a multilayer switch. When I try to execute "tclsh" command I receive this message: SWITCH#tclsh
Translating "tclsh"...domain server (X.X.X.X)
% Unknown command or computer name, or unable to find computer address
The equipment is a MLS C3550 - Version 12.2(35)SE3
Is there any wrong with the IOS version?
Cisco Switching/Routing :: C3550 Is DHCP Snooping Needed For Port Sec To Work
Oct 8, 2012i have a strange problem in my campus network.im trying to run port security on my access switches which they are 3550 with ios c3550-ipservicesk9-mz.122-52.SE when i run the port security with Sticky option, even i put 1000 mac address for just learning on the port but when i issue the switchport port-security command every pc connected to that port loses its connection with network UNTIL i enable dhcp snooping!!! all my client are getting they ip address from DHCP server but strange thing is that how on earth i have to enable DHCP snooping to port security work properly? also when i check the configuration under the interface when dhcp snooping is not yet enabled switch doesnt add any mac address under the interface so no one can work until i enable snooping and then switch adds mac addresses under the interface configuration.is this Bug on this version of IOS?[code]
View 4 Replies View RelatedCisco Wireless :: 3500 Series Access Point Is Not Working On WS-C3550-24PWR-SMI?
Jan 17, 2013i access points in our network.I want to connect with 3550 switch but access point is not working and getting the below error
controller port error.
IOS image --=c3550-i9q3l2-mz.121-20.EA1a.bin
Switch Model---WS-C3550-24PWR-SMI
I want to know ,this access point is supported on this switch ?
Cisco Switching/Routing :: C3550 - Configure Loop Back Interface On Gigabit Fiber Port
Sep 14, 2012I am trying to configure a loop back interface like so: [URL], on the following device:
C3550 Software (C3550-IPSERVICESK9-M), Version 12.2(50)SE, RELEASE SOFTWARE (fc1on port gig0/1 which is using a 1000Base-SX adapter. This is for troubleshooting purposes and it does not appear to be a feasible option. Is there another way to accomplish in the IOS?
Cisco Switching/Routing :: Enable Ip Routing On C3550 And Vlans To Talk To Each Other
Mar 27, 2012I have purchased these two switches from ebay as a test lab, I plan to connect them up via a gigastack modulecable and enable ip routing on the c3550 and vlans to talk to each other.
I'm very much a procurve person and really need to get into the cisco switching.I will want to trunklacp between the switches - whats the process is setting that up on cisco switches?
Cisco Switching/Routing :: 3560E Switch 10 Gigbit Uplink For The Switch
Apr 23, 2012I need 10gigbit uplink for this switch. What are the other devices that i need order along with this device.And what is the diff between X2-10GB-LR= and CVR-X2-SFP.if i take CVR-X2-SFP, in future how can i upgrade from one gig to 10 gig?for current use i need 10gig support required. so what are all the other devices that i need to order.Fiber multimode and distance 15Mt only.
View 2 Replies View RelatedCisco Security :: 3560 - Configure Encryption With MACsec Switch To Switch?
Jun 28, 2012I have a problem, i would like todo MACSEC betwwen two switches cisco catalyst 3560-x but I know that for this operation i needed ACS server 5.1 is it possible to encryp dataflow without ACS server and if you have the configuration
View 7 Replies View RelatedCisco Switching/Routing :: 3750 / 3800 - Configure Trunk Between Switch And Extreme Switch
Nov 2, 2011i have an issue to connect a trunk between cisco switch and extreme switch i have many vlans that i want to cross via a link between cisco 3750 switch and a Extreme Alpine 3800 switch
View 12 Replies View RelatedCisco Switching/Routing :: What Is The Use Of No Switch Port Command In L3 Switch
Dec 28, 2008what is the use of no switch port command in L3 switch?
View 7 Replies View RelatedCisco Switching/Routing :: 3750-X Stacking Switch By Switch
Nov 18, 2012I have two 3750-X configured to be a stack and I am planning to re-rack these somewhere else. What I would like to know is what are the effects of having the master switch itself lose power? Does it immediately just make the member take over master (there should be no election since there are only 2 switches??) and there would be no loss of connectivity?
View 1 Replies View RelatedCisco Switching/Routing :: Catalyst 4006 / Quickly Copy Configuration From Production Switch To Spare Switch?
Nov 20, 2009I have a Catalyst 4006 switch in production and a spare switch of same model. I have to quickly copy the configuration from production switch to spare switch (both L2 and L3 configurations) How do I do that?
View 6 Replies View RelatedCisco LAN :: 3560 Cannot Ping After Moving PC From Switch To Switch
Apr 15, 2013I have a 2 cisco switches that are at different sites one is a Cisco CAT4500 and other 3560. The connection between the switches is a layer 2 fibre link. CAT4500 and 3560 both have VLAN interface ip addresses in order for me to connect to the switches.
I have PC A connected to CAT4500 and PC B connecting to 3560. All these devices are the same VLAN and in the same subnet. I do have trunk links all the way though allowing this vlan as we run vlans. From PC A, I can ping CAT4500, 3560 and even PC B. This tells me everything is fine regarding Layer 2 & 3.
As soon as I move PC B and connect it to the other switch CAT4500 or move the other PC vice versa (this happens in both directions). Both switches learn that the mac address has moved locations and updates its mac address table accordingly. So when I do a show mac address table and show arp, everything has learned and moved fine. However when I try to ping any other device from PC B I cannot. So the 3560 switch PC B was originally connected to, I can no longer ping, the switch cannot see the pc also. It is as if PC B has not learned anything from the switch and cannot respond or reply to any icmp. I have tried this with different end devices, same thing. I am now thinking it has something to do with the switch.
Possible To Assign Loop Back Address To Typical Switch Port On 2950 Switch
Jan 16, 2011is it possible to assign a loopback address to a typical switch port on a 2950 switch? I want to be able to have some devices connected to a switch to test access lists and VLANs.
View 3 Replies View RelatedCan A Poe Switch Be Connected To An Ethernet Switch
Aug 12, 2011can a poe switch be connected to an Ethernet switch
View 1 Replies View RelatedCisco :: Switch IP Addressing
Jan 2, 2013I'm on my way of taking the CCNA Exploration, and even though I haven't got to the LAN Switching and Wireless course, one question does bug me. In your average LAN, does your average switch has an ip address, or is it a 'dumb' device like a repeater ? Is the same true for layer 2 switches and layer 3 switches or is there a difference in terms of IP addressing ? Can you even assign an IP address to a switch ? Would you want to do that and why ?
View 5 Replies View RelatedCisco :: DSL Router Is Also A Switch?
Sep 8, 2012what 'A DSL router is also a switch, albeit an unsophisticated one (usually).' mean.
View 5 Replies View RelatedCisco :: Switch Not Loading?
Dec 20, 2012I have a 3560 here that doesn't seem to want to boot. What happens is plug the power in, SYS and RPS light go orange and the others are green for about .5 sec then all the lights go off and the SYS light flashes green 8 times and goes offThe fans on the switch are still running but no lights and no output to console.
View 2 Replies View RelatedCisco :: How To Switch IP Address
Apr 16, 2012I am planning to put a switch in between ISP and Router.( WAN section)
View 3 Replies View RelatedCIsco Switches :: SF 300-24P Don't Want To Add Another Switch
Mar 16, 2012I have a 300 series switch with VLAN1 untagged, VLAN 15,5,100 tagged. I want say ports 1-12 to use one uplink/trunk and 13-24 to use another uplink. All ports should have the same default VLAN1 and be tagged for 5,15,100. I'm trying to ease the load on two wireless uplinks(one is a Cisco 1242AG and the other is a UBNT PowerBridge.) I don't want to add another switch. Model: SF 300-24P
View 5 Replies View Related