Cisco Vs Brocade VLAN Trunks
Oct 25, 2012
Let's say I have a Brocade switch, and a Cisco switch, and I've formed a VLAN trunk between the two.On the Cisco switch, I configure the trunk to utilize VLAN 3 for its native VLAN.On the Brocade switch, I utilized the command 'default-vlan-id 2'. I have configured the port going to the Cisco switch in dual mode.From my understanding, when a port is placed in dual mode, it sends frames that are untagged as the default vlan. Does this cause a native VLAN mismatch?
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Jun 20, 2012
I'm configuring two etherchannel groups (2 ports in each) on a 3560 switch. I need to trunk multiple vlans over each channel group.
I created the vlan trunks and allowed vlans on each physical interface. I notice that I can also configure the vlan trunks on the port-channel interfaces that were created. Should I configure them under those interfaces, or leave them on the physical interfaces? Relevant config is below:
interface Port-channel1
!
interface Port-channel2
[Code].....
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Jul 21, 2012
We are upgrading out internal office network. I have setup 4 switches and 1 router using the following config.
-2 SGE2010p's are stacked together forming vlan 30 (to be used for phones)
-2 SGE2010's stacked for workstation's under vlan 20
Both switches are apart of vlan 1 (the default)Ports 1 on each stack are connected to a Cisco 890 (port fe2 and fe3) in trunk mode. Ports 2 and 3 are in an LAG group and connected to the neighboring stack (I have attached a diagram), and are also in trunk mode).At this point one port (port 1 on either stack) goes into blocking mode, and I get why ,it's a physical loop.I need more than a 100mb link between switches (which is what pulling the LAG between switches gets me), but I don't want to route phone traffic through my workstation switches to get out of the LAN.Is it possible using these switches and router to have a LAG between stacks and a link to the router for traffic to 0.0.0.0 ?
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Jan 11, 2012
I have defined a trunk between a nexus 5k and cat 3750 as a pvlan trunk - now I would like to add redundance and performance and tried to establish a vpc between my par of nexus's and the 3750 stack - but the nexus tell me that the port-channel doesn't support pvlan's - and then - ehh - do I get any benefits of running the trunk as a pvlan trunk at all?
interface Ethernet1/4
switchport mode trunk
speed 1000
switchport private-vlan trunk allowed vlan 550-552
switchport private-vlan mapping trunk 550 551-552
[code]...
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Feb 12, 2013
At the moment our whole company is equipped with Catalyst switches ranging from 2950, 2960 to some 3560G and 3750X (Cores). Now I'm thinking of replacing some of the old 2950s (which are only fast ethernet) with some Brocade 6430 or 6450s, since they're so much less in pricing.My concerns though are: will spanning tree work problem free, access lists still work and any other problems I could encounter with interoperability.According to Brocade most of these things should work fine, but I'm searching for some facts from people who are running a heterogenic Network with these two brands (even the same product lines).
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Jan 23, 2013
whether MTU sweep is possible in Brocade 7420B. This is used in Data Center and Sys Admins are refusing it . I wish to check path MTU between these two devices (including these devices) separated by transmission media (I own this). OR any other method to check path MTU in Brocade . I have allowed jumbo frames in all my DXCs.
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Jan 11, 2012
I am installing a connection between Brocade MLX and Cisco 4503 using SE and SVI's. Below is the config for each. Am I missing anything like MTU Ignore or something along that nature?
*** Cisco 4503 (v15.01) Config ***
VLAN 35
name EOC_Gi1/2
[Code].....
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Sep 24, 2012
Had a question regarding creating dial peers through sip trunks. It will be through verizon fios so it'll be terminated through the fa0/0 port. I know to the provider i'll implement something along the lines of this:dial-peer voice 1 voipsession target ipv4:1.2.4.4sipv2port fa0/0Many of the documentation I came across really only shows pots dial-peers will a voip dial-peer work the same? Something a long of the lines of this:dial-peer voice 2 voipdesination-pattern 91[2-9]..[2-]...... no digit-stripport fa0/0
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Feb 5, 2012
I need to adapt a Cisco Catalyst switch configuration into a new ASR9000 router and I do not know how to configure trunks and access ports on an ASR9K router.
This is the configuration of the catalyst switch I want to replace.
interface GigabitEthernet1/0/1
description Access-Port -> SERVER
switchport access vlan 5
spanning-tree portfast
!
[code]....
Am I right? Or do I need to use the command “rewrite ingress tag pop 1 symmetric”on any of the interfaces o subinterfaces? Do I have to configure the command “encapsulation dot1q untagged“ on the GigabitEthernet0/0/0/0.5 subinterface?
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Dec 16, 2011
I'm building this network and I stumbled upon a problem that I don't understand. Here is how my config looks:
PC -----------vlan5-------Cisco 3560----trunk3-5----Cisco AP1420
Vmware guest
Configuration of 3560:
interface Vlan3
description ID-180, wifi1
ip address x.x.x.x 255.255.255.224
ip access-group 115 in
[code] .......
Configuration of WIFI AP:
interface FastEthernet0
no ip address
no ip route-cache
[code]....
PC and vm ware are plugged in port 5 and 6, wifi in port 7. There if no V LAN ID set on the PC, but there is V LAN ID set on the VM ware esx interface. If I try to ping WIFI from PC or esx, ping doesn't get through. If I plug WIFI to port 5 or 6, I get access it.
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Apr 18, 2013
R11 is acting as host for testing purposes (pinging the DG's, and the ISP interfaces -> which are the lo0 address on the routers.I also have another question: How would I go about providing redundancy on the trunks from the Switch to the router?
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Nov 7, 2011
I am beginning to implement OSPF into the network I work on. I have a network which consists of multiple 4500, 6500 series routers and 3560s. Each switch has its own set of VLANs. In other words VLAN X on one switch is not the same as VLAN X on another switch. I had envisioned connecting each switch via trunk links and then routing via the loopback addresses on each device. That didn't work. Then I created a VLAN 100 on each switch. Each one was configured with an IP in the same subnet range (10.3.0.1 and 10.3.0.2). I added these addresses to the OSPF process in area 0. It worked. However, this is not desired. I have not seen many examples of 4500 layer 3 switches configured with OSPF. The examples I have seen show the interfaces configured with IPs.
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May 12, 2013
I've been tasked with finding all switch ports that are configured as Trunks. We plan to use LMS 4.2 to push (via Netconfig) new interface level commands to all user (non-trunked) ports. From my experience, this poses a problem because we do not know which ports are configured as trunks -vs- user ports.
Using Netconfig is not going to be easy since there is no way to script this. It would be great if I could run a show command on a switch and then have CWSI peform a change based upon the output.In other words, we need a way to run a job based upon the output of a command.
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Apr 4, 2011
we have a cat6509 with FWSM. We pass to the FWSM several VLANs. AllL3 is assigned to the FWs.In the Cat6500 log we have received this message %SVCLC-5-FWTRUNK: Firewalled VLANs configured on trunks ,when we configure 2 vlans in a trunk to an ESX server (these 2 VLANs are alreadyassigned to the FWSM).Idea is to share an interface to a ESX server with several VLANs, some of them are assigned also to FWSM.
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Feb 19, 2009
I would like to monitor the status of ether channel and trunk configurations in 6500 Catalyst switches running both CATOS and IOS. I would like to understand the specific mibs /OIDS that should be monitored for ether channels and trunks. I am trying to get a better handle on tracking the ether channels and trunk dynamically and then understanding when the ports are having issues (up/down and errors). I need to understand how to differentiate these type of ports from regular access ports.
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Jan 30, 2013
I have 2 3750 switch stacks which I would like to have redundant trunks between them. This will provide two physical connections traveling through different geographical locations for redundancy in the event that a cable is severed. I couldn't find anything in regards to setup/config. Does it matter if I go stack1/switch1 to stack2/switch1 and stack1/switch2 to stack2/switch2 or should they cross to opposite switches like a stack cable? I don't think that should be necessary, but couldn't find any documentation. Should there be an issue with loops?
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Aug 28, 2012
how to configure QoS on my SGE2010 to support my Toshiba CIX PBX VoIP trunks. The infrastructure is straight forward: PBX(1)<==>SGE2010(1)<==>SGE2010(2)<==>SGE2010(3)<==>PBX(2) where PBX(1) and PBX(2) are connected through three SGE2010's that are trunked via fiber between buildings. I don't have VoIP handsets and the PBX's are on their own VLAN. Everything else has been a breeze in these switches but I have no experience with QoS
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Feb 5, 2013
We have a Cisco 3750G Core switch which has physical connections, each configured as trunks to two HP Access switches. The client who uses these access switches would like to put a link between the two, but this would create a loop.
------- Core Switch -------
| |
| |
[Code]....
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May 12, 2011
We are trying to config vlan 10 for data and vlan 20 for voice on the same port - port 1 of swtich SF300-24P to run both data and voice on different vlans.Do I have to add vlan 10 as an untagged vlan to port 1 and add vlan 20 as an tagged vlan to port 1?If I do not want to assign the native vlan 1 to port 1, how can I remove it ? The GUI page - assign VLAN to port does not allow to remove it.Aslo, what mode shall I set up on port 1? General, trunk or access ?
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Jan 12, 2013
How do I submit an RFE (Request For Enhancement) to the Cisco SBR team to encourage them to implement the missing support for VLAN to VLAN firewall rules that was available in the RVS4000 (See [URL]) and that was supposedly added to a beta release of the RV220W firmware (See [URL])?
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Jan 10, 2012
Between our hosting and a customer we have an extended vlan, traveling on a fiber, between two cisco 3560 switches.The thing is, that we want to create one or more vlans inside that extended vlan, in some way if possible?
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Jan 10, 2013
I have two networks at two sites with a dot1q trunk between the two L3 switches at both sites (no routers involved)
SITE A - Cisco 3750 L3 - VLAN ID 50
10.10.50.0/24
SITE B - Cisco 3750 L3 - VLAN ID 50
10.20.50.0/24
I would like to extend the SITE A VLAN to SITE B so that I can move hosts from SITE A to SITE B without needing to change their IP address but the vlan ID is already in use. Obviously the easy solution is to change the VLAN ID for one or other of the sites but both sites contain hosts that run 24/7. Is there a way to join two VLANs with different IDs together.So for example I create a new VLAN 60 at SITE B and associate it with VLAN 50 at SITE A.
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Aug 12, 2012
We have 6509 VSS with FWSM Module and we have created two context on it, one is INTERNALL CONTEXT othe is EXTERNALL Context? We have spanned various VLANS in switches and FWSM context level. All VLAN Gateways are configured in context level.
Activity description : We had planned migration of these devices into a new Datacenter, it was a planned activity. During migration of devices from one Dc to a new DC we broke the VSS and kept the primary running and removed the secondary switch and migrated this secondary to new DC and powered this device ON in the new DC and checked all the config was very much fine but this device was OFF network as secondary was brought to new DC just to limit the downtime during the primary switch movement.
During the activity ( Primary switch movement )We powered off the Primary switch and mean time before shifting into new Data center We had brought up secondary switch which was already existing in the DC was put live in the network and it was working fine without any issues.
Later we had moved Primary into new data center and tried to put into VSS with the secondary , during this period the secondary device into went into RECOVERY MODE and primary device was not responding and devices went off network and immediatly we removed the VSL link and brought up primary into production network without secondary online in the network ( Without VSS just stand alone switch ) network started working, but bringing up the primary we found that some of the VLANS in the FWSM was deleted and some VLAN had misconfiguration ( example : say original VLAN ip 10.200.112.1 has become 10.300.13.1 ) also some of the access list as well as SVI was deleted making configuration mismatch.
Wanted to know while syncronization b/n primary and secondary switch in VSS if we pull out VSL link would create this type of issues.
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Feb 2, 2011
I have set up 2 DHCP pools and 2 VLANs (1 *the native* for data / 1 VLAN for voice). When I use the command "switchport voice vlan 20" the port disapear from the show vlan brief list. When I use the "switchport access vlan 20" it shows up in the show vlan brief in the correct VLAN and gives the phone an IP. I assume that using the access instead of the voice is wrong and the phones would not configure correctly. But when I use the access the phone goes to the next step and tells me the TFTP files are not found. Why does the port disapear from the VLAN list?
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Mar 31, 2013
i need to solves this little problem on 2960S lan BASE but i dont know if it is possible.
Uplink port config for gi 1/0/28 is:
switchport mode trunk
switchport trunk alloved vlan 10,11
but on interface gi 1/0/1 i want to have data from vlan 10 tagged as VLAN 20.
At this time i have solved this issue very primitively
I have set up gi 1/0/2 as int mode acces, acces vlan 20 and i have connected gi 1/0/2 with gi 1/0/3 with eth cable. int gi 1/0/3 is switchpor mode acces, switchport acces vlan 10
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Sep 16, 2012
I have a 3750G switch in my production network that only has VLAN 1 on it. All ports are in a default state and VLAN 1 is disabled. The switch is passing traffic but shouldn't having the default VLAN shut down cause the ports not to pass traffic? If I start to create VLANs will that cause the switch to stop passing traffic?
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Oct 12, 2011
I'm wanting to setup a Virtual Office scenario. Everything is working fine except for 802.1x...I can get the 881 to authenticate things connected to it, but I don't have the options of guest-vlan or auth-fail vlan.Idea is if the users takes the router home and someone, either accidentally or on pupose, connects an unauthorized Laptop, they stay off the Corp network but can get to the internet still.I found this link on Cisco's site: [URL]That link shows them configuring a guest vlan right on the fa0-3 ports of an 881W. I dont have that option on mine. I can only configure 802.1x on the vlan interface. I have 802.1x working, for things that connect to vlan1, but I would like to have a "fallback" setup.
EZVPN_Remote(config-if)#int fa1
EZVPN_Remote(config-if)#dot
EZVPN_Remote(config-if)#dot1?
dot1q
EZVPN_Remote(config-if)#dot1
[code]....
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Jun 13, 2011
I am trying to setup a L2tpv3 VLAN-to-VLAN tunnel.My setup has two Cisco 890 router with Cisco IOS Software version 15.0(1) M4. These routers are connected directly on FastEthernet port 8.
One linux machine is connected on FastEthernet port 0 on each router. The two linux machines are on same vlan. I am trying to establish a vlan-to-vlan tunnel between the routers and send traffic between the linux machines.
I followed the case study 11.4 from [URL] and configured the l2tp-class and pseudowire-class. However, the vlan interface configuration is different on 890 router.
I configured a vlan interface as follows.
(config)#vlan 200
(config)# interface FastEthernet 0
#shutdown
#switchport access vlan 200
(config)# interface vlan 200
I don't see the 'xconnect' command in this context. What's wrong with my configuration?
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Nov 20, 2012
We have a low bandwith (15-20 Mbit/s) to the ASA from our Client vlan. If i connect the Client to the same vlan as the ASA is, the bandwith (90 Mbit/s) is good.
Here are the Layer 3 Design:
Client -> vlan 2 - Switch - vlan 7 -> vlan 1 - ASA 5505 -> ISP
The Layer 2 Design:
Client -> Gig2/0/13 - Switch - Gig4/0/43 -> Eth0/1 ASA5505 -> ISP
IP Address:
Client: 172.16.2.10Vlan2: 172.16.2.1Vlan7: 172.16.7.1ASA: 172.16.7.2
I assuming the switch has a problem with routing ?It is a stacked Switch with following members:
switch 1 provision ws-c3750g-12sswitch 2 provision ws-c3750g-24tsswitch 3 provision ws-c3750g-24tsswitch 4 provision ws-c3750x-48
And we have following error message in the log from the switch:
%PLATFORM_UCAST-4-PREFIX:
One or more specific prefixes could not be programmed into TCAM and are being covered by a less specific prefix, and the packets may be software forwarded I first get the idea that the switch is overloaded with router traffic. Thats why i assuming i have to check the sdm templates, but i'm not sure if this resolves the issue.
Here are the relevant config:
ASA Interface on the Switch:
interface GigabitEthernet4/0/43description ASA-inside LANswitchport access vlan 7switchport mode accessspanning-tree portfast
Client Interface on the Switch:
interface GigabitEthernet3/0/1switchport access vlan 2switchport mode accessswitchport port-securityswitchport port-security aging time 2switchport port-security violation restrictswitchport port-security aging type inactivitymacro description cisco-desktopspanning-tree portfastspanning-tree bpduguard enable
[code]...
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Nov 21, 2012
i'm going mad on following problem. I'm trying to get 2 networks seeing each other while one of the network is a non VLAN network and the other one is a VLAN network.They should use the same interface so i added VLAN e0/0.122 to the interface e0/0.Send a ping from my asa to both gw-IP's made me happy at first. In second in figured out that i cannot reach any client in the other network. For testing purpose i created an permit acl to any/any for both networks, but the packets still get dropped by the default implicit rule. (deny any/anyMaybe i'm to stupid for this
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Nov 27, 2012
I am trying to set up a Vlan on an SF-302-08 small business switch. I would like two Vlans both with internet access but the two cannot communicate with each other. I am not really sure how to go about setting this up as its all fairly new to me. I have successfully set up the Vlans and the ports on each VLAN cannot communicate with each other however the internet access will only work when plugged into either VLAN but wont work on both together
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Jan 23, 2013
I've been given the task to clean-up our network config, and have walked into a disaster zone.We have a 4510R on site with everyone using the default VLAN, VLAN 1.I have created 4 new VLANS, VLAN100, VLAN150, VLAN200, VLAN250 I have assigned interface addresses to each VLAN and configured Inter VLAN routing.I can route to and from each new vlan with no problem, i.e VLAN250>VLAN100 VlAN100>VLAN200 etc but I can't route to VLAN 1(Default VLAN) from any of them, I can ping the interface on VLAN 1 from any VLAN , but any hosts are unreachable. On the flip side , from VLAN 1 I can route to all of the VLANS.
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Apr 6, 2013
I have some problem in my small network.I have 2 SF-300 48 port switches and connected to 847 router for intervlan routing. I configure 7 vlan in SW1 and uplink to SW2 with trunkport.
The problem is that if i used default gateway for users ip address of interface (vlan interface) is ok. I bring two adsl modem and connected to vlan1 and vlan2 for internet access. When i connected this two modem vlan 1 and vlan 2 are not going to access other vlan 3,4,5,6,7 and wise versa.
vlan1 users getting default gateway from adsl modem ip, how i can permit this two vlan should to access other vlan 3,4,5,6,7 and 3,4,5,6,7 should access to internet also.
[URL]...
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