Cisco Switching/Routing :: 4500E Not Remember MAC After Connected To 2960s
Jan 15, 2013
client originally connects to the 4500E, moves to the 2960s and then cannot connect back to the 4500E.My design is a 4500E (configured for routing) and a 2960s. The 2960s is trunked to the 4500E, no vlan pruning.
Tried;
- shut/no shut port on the 4500E doesn't work
- no result for sh ip arp | i (clients mac) or sh mac address | i (clients mac) on the 4500E
The only way I can get the user back online is removing the 2960s, not a desirable solution as other clients are on the 2960s.
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Mar 5, 2013
I have 2 PE routers connected to each other via 2960S and 3750 (non-metro) switches:
[PE1] -- [2960S] -- [3750] -- [2960S] -- [PE2]
I will be sending voice and data traffic between the two and my voice traffic will be marked DSCP EF & EXP 5.
Since the 2960's and 3750's can't match on the EXP bits, I am wondering if the "mls qos trust dscp" command still works. Is the 2960/3750 able to match on DSCP even though there's an MPLS header on top of the IP packet?
I'd like to avoid having to tag my VLAN traffic on the PE and rely on COS to achieve QoS in this case.
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Mar 25, 2012
I was contacted by a customer today who is trying to configure QoS on a 4500E with Sup7-E. They are running:
cat4500e-universalk9.SPA.03.02.00.SG.150-2.SG.bin
And the 4500 is licensed for enterprise Services. I don't have access to the switch and am looking for configuration documentation and I am not finding the necessary configuration guides.
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Jan 21, 2012
Just received a couple of new 4500e chassis with the 2800ACV power supplies installed. I have not seen the cables they come with standard, the plug ends are considerably thicker than normal, what is the deal, do we need an electrician to come out and rewire or purcahse new powerboards?
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Apr 25, 2013
I have some cisco 4500E with sup7l-e and I want config acces port(with non-cisco ip phone), that cos and dcsp mark does not change.
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May 14, 2012
I upgraded IOS-XE on 4500E (SUP7L-E) to cat4500e-universalk9.SPA.03.03.00.SG.151-1. I encounter the log when i try to issue write mem commad
% VRF table-id 0 not activeCompressed configuration from 8947 bytes to 2140 bytes[OK].
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Jan 17, 2012
When i swapped a Sup v 10 ge for a Sup6 E Tonight in order to take advantage of the netflow capabilites of the Sup V - It came up with module unsupported for the following cards - WS-X4648-RJ45V-E Will these only work with the Sup6 E or what
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Nov 20, 2011
The DHCP/DNS server is on ip address 10.1.100.103 with an alt on .102 I'm attempting to integrate a 4510R+E into an existing network and use existing DHCP/DNS windows 2008 server to push out IP addresses to connected computers.
I want to assign a VLAN to every port for management purposes and then I put an IP helper address on every VLAN.
I've attached a the 4500E partial config. I'm attempting to get Gi1/44 to a state where I can plug a computer into it an resolve an ip address and gain internet access like all the devices on the existing network can do.
I've created a new scope in DHCP with the ip subnet of 10.60.211.0 255.255.255.0 It leases addresses from .1 to .253
The computer will not resolve ip addresses with this config.
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Jun 29, 2012
I have cat4500 with subject module. There is strange behaviour over module installed in 3rd slot only, some ports are connected, UP & working fine. But If I am connecting new ports over same module, are not coming UP.Duplex/speed settings already checked & are fine. If i connect same machine to any other module, it perfectly comes up & operation is fine.
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Feb 23, 2012
I have a problem connecting a PC in a TwinGig Convertors (GLC-LH-SM). I want to connect a PC with a fiber cable on the supervisor WS-X45-SUP6L-E of my Switch 4500E.
The default configuration mode is X2. As I want to deploy Gigabit interfaces (that is, use TwinGig Convertors), then I configured the associated port-group:
Switch(config)#hw-module module 1 port-group 2 select gigabitethernet
*Feb 24 06:18:37.125: Port Te1/2: TwinGig Converter inserted: vendor: CISCO
Switch(config)#do sh int status mod 1
Port Name Status Vlan Duplex Speed Type
[code]....
I noted that the Swicth set up automatically 'switchport mode trunk', so i put the command 'swicthport mode access' because i want to connect only a PC. But the status is the same, I can not achieve connectivity. i just want to know how connect a PC in the interface GigabitEthernet1/4 of the supervisor engine of my Switch.
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Mar 25, 2012
Will there be some pause in traffic on formed ether channel interfaces (4500E switch), when i will change the default ether channel load balancing method to src-dst-port (or any other non-default method)?
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Feb 6, 2013
What's the difference between a Catalyst 4500 and a Catalyst 4500E series chassis? I believe it has to to do with supporting PoE+? Are the blades in both series interchangeable?
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Aug 8, 2012
We've got a doubt about the uplink ports of this supervisor. I've read that you have to use the four ports in 10G mode or in 1G mode, but not use for example 1 port in 10G mode and 1 port in 1G mode:
But, you can read in another sentence: " Beginning with Cisco IOS Release 12.2(25)SG, you could simultaneously deploy the dual 10-Gigabit.Ethernet ports and the four Gigabit Ethernet SFP ports on the Catalyst 4503, Catalyst 4506, and Catalyst 4507R chassis." Is it posible deploy simultaneously both type of ports?
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Mar 28, 2012
I have a 2600 Router series and I cannot remember the Password. I have tried following web pages that state to use control Break on the boot up but its not working.can reset that pw and write erase my configuration file?Here is my boot up. I have tried hitting control break at the very beginning over and over and then again when at the cold boot it has not worked....
System Bootstrap, Version 12.2(7r) [cmong 7r], RELEASE SOFTWARE (fc1)Copyright (c) 2002 by cisco Systems, Inc.C2600 platform with 131072 Kbytes of main memory
program load complete, entry point: 0x80008000, size: 0x1c9468cSelf decompressing the image : ######################################################################################################################################################################################################################################################################################################################################################################################################################################################################## [OK]
Smart Init is enabledsmart init is sizing iomem ID MEMORY_REQ TYPE00036A 0X000B3B80 C2610XM Single Fast Ethernet 0X00098670
[code]....
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Oct 28, 2012
I have recently split the voice vlan (10) from the data network (1), and am wondering why my catalysts and router do not require an interface Vlan10 statement. In the past I used OpenBSD boxes to do the routing, and I first needed to configure vlan 10 on the interface before I could get inter-vlan communication to work. With these Cisco devices it works, and I am wondering if it is because of VTP, for the fact that the ports maybe just pass all traffic, or is there some other explanation? Below is the setup, and firmware is up-to-date on all of the devices.
When I plug a phone into the POE SGE, the phone turns on, obtains an address on the proper subnet, and conversations are clear (whereas without the ip nat inside on the new subnet the calls had a lot of static). Possibly the reason that it works is because the phones properly create the tcp/ip packet, and it hops over the trunks and creates the states so that traffic routes back properly. I will install wireshark to see exactly what is going on, but is there a simple explanation that I am overlooking?
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Mar 23, 2013
I need to enable multicast routing on 2960s but the command "ip multicast-routing" isn't available on my release (12.2.(55)).
From which release this command is available?
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Oct 8, 2012
I have C2960S-48FPS-L and C2960S-24TS-S both of them are using C2960S-UNVERSALK9-M image with version 15.0(2)SE on both I run "mls qos"
and on 48FPS-L I run "mls qos map cos-dscp..."on 24TS-S I cannot run it. there is no such command. there is just "mls qos rewrite..." and "mls qos srr-queue..." variants.
I thought that one image give the same set of commands...?
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Jan 17, 2012
while i am configuring a port on switch .The switch reloads.After reload the show version says,System returned to ROM by bus error at PC 0x458F6C, address 0x0,show version from the effected switch is,Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(58)SE2, RELEASE SOFTWARE (fc1).
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Dec 8, 2011
I am currently having an issue with connecting a Catalyst 2960-S switch to a Small Business SG300 switch. When I connect them they are unable to form a link. When I do a show spanning-tree it says the mst link is in dispute.
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Mar 25, 2012
I read some papers about QoS. The thing is that I have to implement 30 switches with QoS to connect to a lot of Cisco IP phones. The switches are Cisco 2960S with code image "C2960S Software (C2960S-UNIVERSALK9-M), Version 12.2(55)SE3". Should I use autoQoS feature or manually configure them?. How should I treat uplinks between access switchs and core/distribution? I have a lot of doubts regarding queueing, because all the info I had read its for another model/image.
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May 16, 2013
I'm looking at the WS-C2960S-48TD-L and have a question about the uplink ports. Is it possible to mix 10G on one uplink and 1G on the other? The datasheet says 2x10G SFP+, 2x1G SFP so I am thinking mixing is not possible.
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Nov 5, 2011
just got new hardware and decided to try the newer USB port for IOS upgrades. I could not get the switch to recognize my 2gig flash drive. Do I need a proprietary stick or special format?
I also noticed when I removed it the switches crash dump and rebooted?
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Aug 18, 2012
When using dynamic configuration tools, if I choose 2960 (not 2960s), I have the option to choose RPS2300 as redundant power, but when I choose 2960s, I cannot choose RPS2300. However, in a document describe both 2960 and 2960s, it said that RPS2300 can be used. Does RPS2300 support 2960S?
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Dec 20, 2012
Recently I'm working with my client to setup their network and he want me to limit user access internet bandwidth to 2 Mbps and the topology show below.Users ---> Switch ---> NAT Router ---> (int gi1/0/24 - qos apply) Edge Switch ---> INTERNET ROUTER (12Mbps) --->> INTERNET,This is my configuration, but it doesn't work, the end user still able to get more than 2Mbps internet speed.Access-list 100 permit ip any any dscp default,class-map match-all QoS_Floor_Limit, match access-group 100.
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Mar 11, 2013
I would like if is possible to stack a Cisco 4900M with a 2960S. I know it is not the most common situation but i need it.
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Feb 20, 2013
I would like to enable port security to hardcode the MAC address on the ethernet switch. There are 5 ethernet ports in the same ethernet switch to be assigned for one person (one note book), e.g. port 5, 6, 15, 16 and 23. The model of ethernet switch is cisco 2960S and one MAC address is configured on 2960S.
1. Does 2960S support this requirement to allow input the same MAC address to 5 different port?
2. If yes, can ethernet switch "smart" enough to forward the packages to "active" ethernet port which is connected to notebook and the rest of four ports are inactive.
3. if no, any solution or any work around to achieve this requirement
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May 11, 2011
We are designing a LAN Network for ourselves.The proposed design is as follows:
4 x 2960S switches in a Stack Access-Stack-I 4 x 2960S-PoE switches in a second Stack Access-Stack-II
2 x 3750X switches in a Stack Core-Stack
Now I would like to connect it in the following manner ?First,I would like to use EtherChannel using the 10Gig LinksSecondly, I would like to use Cross-Stack EtherChanel too.I have given a graphical illustration of the connectivity Now my Qs: a) Will the 2960S supports EtherChannel using the 10G links and the 3750X too... b) Does the proposed solution will work... or It will have any problems.
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Jan 29, 2013
I have two switches (2960S's) both with IP Phones on VLAN100..We need to monitor voice traffic via a monitor port on SW1 of all VLAN100 traffic on both switches.The following is what we have configured, but we cannot see VLAN100 traffic on SW1
According to Cisco doco you cannot have a SPAN and RSPAN on the same session, however since these are two sessions on SW1, I would have thought it to be OK.
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Apr 29, 2013
I have a running setup having 2 Cisco 2960s 24 TS switch with Stack configuration. Now I want to add one more same Cisco switch. My questions are:-
1) How can I do this...(Should follow the same process as I did before.
2) Could I do this without impacting the service. i.e. without rebooting the switch.
3) What should be the connection archiecture as of now since there is two switch so it is connected 1 -1 and 2-2. but for 3 switch should we require to change the connectivity.
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Jul 21, 2012
i did on cisco 2960S switch at user ingress interface. but the marking is not showing in show policy-map interface gig 1/0/10 interface and ACL is not showing any match.
I also had a config reference from 2960S cisco guide.
access-list 103 permit tcp any any eq 80
access-list 104 permit tcp any any eq 23
access-list 105 permit icmp host 172.24.68.4 any
class-map IN_HTTP
match access-group 103
class-map IN_TELNET
match access-group 104(code)
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Feb 8, 2011
We have seen high CPU utilization on some Cisco switches of type 2960S. Also we got info, that applications are running with poor performance or with interruption.Following IOS is loaded: C2960s-universalk9-mz.122.55.SE
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Dec 20, 2012
They have a /28 wan adress coming from ISP, that gives out 100Mbps, going to a Cisco 2960S switch (ver. 12.2) the switch is only holding 1 vlan. Connected to the 2960 are 3 firewalls/routers from other manifactors, each creating their own network. The customer wishes for a solution where each final FW/router gets minimum 33% and maximum 100% of the bandwidth, depending on how much each final Fw/router are in use.
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Mar 11, 2013
I would like to know if i can and how stack a Cisco 4900M with a 2960S. I know it's not the most common but i need it.
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