I am trying to run TDR tests on a 3750G (ver12.2). The switch ports have 3502 series access points attached to them. When ever I run the test the results all show "Not Completed". I understand that this means the test failed but this happens with any port I try.
View 1 RepliesI have a 3750g connected to a "core" switch stack of 7 other 3750g's via 2 GigE ports in a trunk. This is currently in a switchport mode access port- channel so only the default vlan data is sent over. Now we have a need due to physical location of these switches, to allow vlan20 (DMZ) from this 3750g to the switch stack. I will configure a few ports on the switch stack for vlan20 and they need to be able to talk to the stand alone 3750g.To do this I will change the port channel on both endpoints to
-switchport trunk ecapsulation dot1q
-switchport mode dynamic desirable
also making the appropriate change on the interfaces belonging to this trunk.My question is, now that its a trunk port that carries multiple VLANs, how much is the bandwidth reduced on that 2gbps link?I have a very active VLAN (10) on the stand alone switch, but on the core I'm not going to be assigning VLAN 10 to any ports. So does traffic from VLAN10 even come across the trunk (wasting bandwidth) if no ports on the core side are assigned to it? I really just need vlan 1 and 20 (for now).
I have a 48-port 3750G switch (model # WS-C3750G-48TS-S). How do I determine which ports are grouped per ASIC on the 3750G switch? For example, is the grouping ports 1-8 is serviced by ASIC 1, ports 9-16 is serviced by ASIC 2, ports 17-24 is serviced by ASIC 3, etc. If it exists, what is the IOS command to show the mapping of ports to ASIC?
View 2 Replies View RelatedI have a stack of 3750G's where the connection between switch 1 port 1 and switch 2 port 2 are down
Stack Port Status Neighbors
Switch# Port 1 Port 2 Port 1 Port 2
--------------------------------------------------------
1 Down Ok None 3
2 Ok Down 3 None
3 Ok Ok 1 2
I have ruled out the stackwise cable as the problem but would like to know which switch has the problem
I've run in to this on 3750G's in a various sized stacks. We apply port security for a mac address on a single port (not existing on more than one port - that's a different issue that appears in multiple posts already).In this case:
1) We do a 'sho mac address-table and see that the device with the mac address in question lives on one port, port 1/0/x.
2) We apply mac port security for this exact same mac address to the same port it is already attached to. switch(config)#int g2/0/2 switch(config-if)#switchport port-security mac-address 001a.1ec8.abcd
3) Get this error: 'Found duplicate mac-address 001a.1ec8.abcd'.We again confirm that that is the only port on the entire switch that has this mac-address.Try the command again, same error.
4) We do a bunch of show commands, get in and out of the switch, go back and then try it again, and now it works, same command, same port and same mac address.
-Aging is default 300
-These are Cisco wireless AP's attached to the switch
-This occurs on different switches with different ports using different mac addresses, always same symptoms.
Has any come across show ver memory details on 3750G-48PS as below, One of our Catalyst 3750G running software 12.2(44)SE2 shows unexpected DRAM as below:
cisco WS-C3750G-48PS (PowerPC405) processor (revision F0) with 0K/12280K bytes of memory. This would equate to around 11MB memory which does not seem right... Is it a known IOS bug?
I got Two Distribution Switches of Cisco 3750G. Each Distribution have two 3750G switches stacked. I also have one Cisco 3750V2 Access Switch connected to both Distribution. When I am checking for redundancy, I can only get redundancy test pass for one link not atall for other. If I have a link up with Distribution 1 only then its fine; but disappointment with Distribution 2 link. I can see that the switch priorities of Dist 2 is not correct ie. Master's priority is 10 and Member's is 15.
My question is that due to misconfigured priorities on Distribution 2 stack switches I am failing with redundancy if ONLY Dist 2 is up and Dist 1 is down.
Previously posted as C2900 - inward NAT partial success...
Running C2900-UNIVERSALK8-M, Version 15.0(1)M3 RELEASE SOFTWARE (fc2)
I have several sets of inward NAT defined (51001-51007, 52001-52007. 53001-53007),all to various internal addresses. When I attempted to add another set, the new onesdo not work and get a "timeout" error.
When I tried port 51008, it gets a timeout. When I changed 51008 to 51010, the 51010 now gets a timeout, and 51008 now gets "connection refused" (which I expect).The original sets all work, the new ones (added at the end of the lists) do not.When I am on any of the internal machines, the target (192.168.1.21) works fine.When I am "in the router", I can connect via the ssh command, so I know that therouter can talk to 192.168.1.21 on port 22 as expected.
I've one Cisco 3750G-12S with ip routing enable, the swtich is with IP Service firmware, with PRR support.Currently set my default static route 0.0.0.0 0.0.0.0 10.1.18.71 to my Firewall A Currently all of the VLAN for will be routed to 10.1.18.71
I've created a new VLAN 2 for my 10.1.2.0/24 network with the VLAN interface 2 ip address 10.1.2.10, my intention is to route 10.1.2.0/24 traffic to my 10.1.2.1 by creating the access list and route-map.
I've configure my test pc with a static ip and my gateway pointing to 10.1.2.10 (VLAN 2 gateway) , i'm not able to route to 10.1.2.1.
We are attempting to PXE boot from clients obtaining their DHCP lease information from DHCP pools configured on our 4506. The PXE server, and the client are configured in separate VLANs. We have configured option 66 to point to the PXE server IP address, and the bootfile option to point to the PXE boot configuration filename. On the client side SVI, we also have configured the ip helper-address command to point to the PXE server (which also acts as another DHCP server for redundancy).
The PXE boot continuously fails stating it is unable to find the configuration file. If we remove the DHCP pool from the 4506, and allow the client to receive their DHCP lease info from the secondary server (Windows 2k8 - same server as PXE server), they PXE boot with no issues.
We have no problem obtaining DHCP info, just completion of the PXE process.
We have an issue where switches are failing weekly in a switch closet. In the past month we have gone through several 3750G switches and a couple 4510s. The power supplies have eventually made a popping noise and had to be replaced. on the 4510s we've tried two chassis and gone through several power supplies.The switches have been behind UPS systems so should be receiving conditioned power.Could load from the PoE devices really be causing this? I wouldn't think it's power since they are behind a UPS.
View 5 Replies View RelatedI have a couple of 3750G-24T-E switches running IOS 12.2 I would like to upgrade to IOS 15.x. Is this possible? Where do I find some information on the required licenses and costs? I must admit that the cisco search function did come up with a few pages but i was not able to extract the required information. I have not used the new software activation features yet.
View 1 Replies View RelatedI've got a requirement to do Inter-VRF routing (need MP-BGP) using a private AS Number on a stack of 7 x 3750G's, my question ultimately is the performance overhead of doing such a change.
The stack will have no more than 300-400 routes even with the duplicates invoked from doing VRF leaking so I can't see much of an issue myself, we already have 2 VRF's and OSPF running in each VRF just don't have MP-BGP to do the VRF leaking.
Ultimately there will be about 4-5 VRF's (I know there's a Software limit of 26 VRF's on a 3750G).
I've just noticed an error I've never seen before in our switch logs. We have a stack of 6 Cat3750G-48TS-E switches. The first two in the stack have been up for just over a year and I've only just noticed this error. Thus far, I haven't noticed any symptoms - I just stumbled upon this error while checking for something else.
As far as I can tell, this has only popped up once and it was 2 days ago. Unfortunately, due to an incorrect firewall rule, our syslogs were not getting to our syslog server so I don't have any historical logs to check against, but it hasn't happened since.
The error I've seen is as follows:-
Jun 5 17:04:03.288: * ManagementInterfaceInitialized exception in port-asic 0 (N16FujitsuSwitch.com.au-2)
Jun 5 17:04:03.288: ***********************************************************
[Code].....
I'm facing a problem where certain port on my swtich keep grant and remove poe.
Nov 12 07:02:43.639: %ILPOWER-5-POWER_GRANTED: Interface Gi1/0/18: Power granted
Nov 12 07:02:44.399: %ILPOWER-5-IEEE_DISCONNECT: Interface Gi1/0/18: PD removed
[Code].....
We have just under 500 switches in production (various models but for this discussion we'll stick with 3750's). All are currently running tar IOS (web based). We want to upgrade the IOS from c3750-ipbasek9-tar.122-55.SE1.tar to.122-55.SE5 but some of our switches do not have enough flash to upgrade successfully. We use CiscoWorks to distribute our software upgrades. I know you can lower the flash requirements on the IOS in CiscoWorks, which I have done (changed from 16Mb down to 12Mb) and the upgrade still fails.
1) How far can I lower the flash installation requirements in Ciscoworks and what are the ramifications?
2) If we decide to change from the tar IOS version to the bin IOS version because we don't even use the web based features anyway, is there an easy way to do this? (CiscoWorks will not upgrade an image from tar to bin)
I have a number of 3560CG-8PC-S switches. My intention for them is to act as kind of gateway L3 switches - one for each satellite site. My thinking was simply to have an L3 device at the gateway to each of those sites so that any inter-vlan traffic within each site can stay within the site rather than having to traverse the relatively slow radio links to get back to the 3750X stack in the core. They are also, however, going to be directly serving client devices
My issue is that for some reason, when connecting a new device (laptop etc) to one of the access ports on the 3560's, the port behaves as if it's being blocked. No DHCP addresses go through, the indicator remains orange, and the clients have no connectivity. However, if I wipe the config, I get a VLAN 1 IP address for my client no problems at all. And to make matters more confusing, only two out of my four 3560's are doing this. The other two have exactly the same config, but work perfectly.To that end, I'm loading the config below. I've followed that by the show running-config output, and show ip interface brief outputs.
configure terminal
hostname ASW34
!
enable secret *RuT1l3&
service password-encryption
username xxxx password xxxx
[code].....
I have a new 2911 that I am trying to bring up but local authentication is failing. I know I have typed the username and password correctly but no go. When I try to http in it is failing as well. I even create a "Cisco, Cisco" account. I have a console connection and even that is failing.
View 4 Replies View RelatedI am trying to stack the following -
3750G 12S - 12.2.53(SE2 IP Services) Running EIGRP & OSPF
with
3x 3750X 48P-S - 12.2.53(SE2 IP Base License)
Doing some research, the IP Base does EIGRP on the 3750X, does it do OSPF?
If not I will have to get licence for the 3750X?
I am having a switch 3750G (WS-C3750G-24TS-S) running a software version (c3750-ipservicesk9-mz.122-55.SE6.bin) and using the PBR with IP SLA.While, i am applying it on interface, it says not supported....
route-map TO-CAS-E0 permit 10
match ip address 125
set ip next-hop verify-availability 10.116.199.200 10 track 100 (if i change this command to set ip next-hop 10.116.199.200, it works)
!
WAN-L3-3750SW01(config-route-map)#interface GigabitEthernet1/0/11
[code].....
I have one switch 3750G12S I joined the company new, I found that they want to replace it with Alcatel stack switches. I didnt configure this Cisco switch before. how to configure it. I have 4 other new cisco switches in the topology which is not created yet. the 4 switches are all 2960.
View 17 Replies View Relatedhave 2 3750's one is an 3750E the other one is a G... Since they are 2 different versions Do I need to correct ios for each for example my 3750E switch i would have
IP BASE
c3750e-ipbasek9-mz.122-53.SE2.bin and for my 3750G switch should i use
IP BASE
c3750-ipbasek9-mz.122-53.SE2.bin
Which would be 2 separate images
I have a 3750G and bought a new 3750X. It possible to stack these two together?
View 5 Replies View RelatedI have a 3750g on which I am trying to configure the ip policy route-map command on each of the vlan interfaces. However after entering the command it does not appear. I'm not sure what to do at this point. I have changed the SDM template to routing and I am running the IPServices image.
View 2 Replies View RelatedI have just received a new Cisco 3750G Switch from my parent company. When attempting to install the switch, I discovered that it will not boot to CLI, only to the bootloader. After using the command boot, the switch attempts to boot the most current IOS version, but fails, stating "error loading XXXXXXXXXX.bin".
Obviously, I just need to get a functional version of the IOS onto the switch to boot, but the problem is exactly how can I do that? All (or most) the commands with which I am familiar are unavailable in the bootloader, so all methods known to me fail. Is there a simple way (maybe using the copy command?) to put the .tar or .bin file onto the flash?
I am trying to create an ACL that walls off a VLAN and only allows it to the internet. This is on a 3750G, currently the 3750G I am attempting this on is in a stack. I have another 3750G that is a standalone.
The first way I attempted this was to create two access-lists: access-list 101 permit tcp 10.249.1.0 0.0.0.255 any eq 80 access-list 102 permit tcp any 10.249.1.0 0.0.0.255 established
Let's call the 10.249.1.0 VLAN 2. I applied this to the VLAN2 interface, 101 out, 102 in. It didn't work. If I place a deny statement with nothing else, that works.
The second attempt was this: access-list 101 deny ip 10.249.1.0 0.0.0.255 any access-list 101 permit ip any any
I applied this to a VLAN I wanted to block VLAN2's traffic from reaching, let's call that one VLAN 3.
This lets all traffic from any VLAN (including the one I'm trying to block). If I remove the "permit ip any any", then all VLANs are denied. Which I understand is correct due to the implied deny all. What I don't understand is why it isn't applying the ACL to the specific VLAN.
I have a 3750G that used to be a Stack Master of a stack comprised of 2 identical switches. Since then, we have removed the stack from production, and I factory defaulted the stack MEMBER and that went fine. I just held the "Mode" button on the front until the lights all lit up and then issued the reload command and the switch came back with no configuration OTHER than the vlan database I issued the "del vlan.dat" command to no avail. I just manually removed all the vlans.
The stack MASTER on the other hand will NOT go back to factory defaults, and will also NOT erase the vlan database. Everything I try will NOT work. I've tried the following
1) Hold mode button & issue a reload after the lights start flashing
2) issue "Write Erase" then issue "reload"
3) issue "Write Erase", then issue "Write", then issue "reload"
4) issue "erase start" then issue "reload" (just in case the "write erase" command is being depriciated or something weird)
5) issue "erase start" then issue "copy run start" then issue "reload"
Is there a special way to reset a StackMaster back to factory defaults?
I have one 3750X with C3KX-NM-10GT, I need to interconnect using stackwise to 3750G-24TS. The 3750X needs IOS 15.0(1) to use C3KX-NM-10GT, and the latest IOS for 3750G-24TS is 12.2.55. How can I interconnect them using diferent IOS?
View 2 Replies View RelatedI have a 3750G switch that can't detect another switch or be detected through its stack ports. I tried the recommended test; looping a cable between the ports and rebooting. I get the following message as the switch boots: SM: Detected stack cables at PORT1 PORT2. However, if I connnect another switch, it won't detect it and can't form a stack.
View 4 Replies View RelatedI'm trying to upgrade the IOS ver on a 3750G stack (2 switches), but the img on the switch is too old.The stack is running IOS c3750-i9-mz.121-19.EA1d.bin, and when I tried to upgrade to a newer version, I tried to go to IOS ver c3750-advipservicesk9-mz.122-35.SE5.bin since I need to enable ssh on the switch, but the switch did not reload.
Here's a prtscreen of the switch ver:
Cisco Internetwork Operating System Software
IOS (tm) C3750 Software (C3750-I9-M), Version 12.1(19)EA1d, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2004 by cisco Systems, Inc.
Compiled Mon 05-Apr-04 22:40 by antonino
Image text-base: 0x00003000, data-base: 0x007CBC3C
[code]...
what IOS ver can I upgrade to that is not already deferred?
have one 3750G stack with 4 switches and this stack is presenting the follow log message:
%PLATFORM_UCAST-4-PREFIX: One or more, 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.
In this stack we are using the layer 3 with OSPF routing, and the current sdm prefer is default:
switch-01-3750#sh sdm prefer
The current template is "desktop default" template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.(code)
I have two 3750G switches that are in a stack, and I am seeing these errors in the log:
002258: Feb 4 17:06:06.355 UTC: %PM-3-INTERNALERROR: Port Manager Internal Software Error (vlanid >=0 && vlanid < PM_MAX_VLANS: ../switch/pm/pm_vlan.c: 1279: pm_vlan_get_vlan_data) (CBAC01-3750-2)
-Traceback= 190F078 19729A0 1972A64 1963764 110BC24 195F2F8 110BB9C 196D2C8 195ECD4 110BC24 19658B0 110BB9C 196D1D8 194C2B8 195D24C 110BC24 (CBAC01-3750-2)
002259: Feb 4 17:06:06.355 UTC: %BIT-4-OUTOFRANGE: bit 4096 is not in the expected range of 0 to 4095 (CBAC01-3750-2)
-Traceback= 10273BC 1027478 1972B50 1963764 110BC24 195F2F8 110BB9C 196D2C8 195ECD4 110BC24 19658B0 110BB9C 196D1D8 194C2B8 195D24C 110BC24 (CBAC01-3750-2)
002260: Feb 4 17:06:06.355 UTC: %PM-3-INTERNALERROR: Port Manager Internal Software Error (vlan > 0 && vlan < PM_MAX_VLANS: ../switch/pm/pm_vlan.c: 773: pm_vlan_set_portlist) (CBAC01-3750-2)
[code]....
Uhg. I deployed a 3560G a week ago and it was crashing... so I replaced it Sep 7 around 16:00 and now this one is crashing. Different logs.
Version 12.2(55)EX3
Sep 6 18:06:08: %PLATFORM-1-CRASHED: Debug Exception (Could be NULL pointer dereference) Exception (0x2000)!
Sep 6 21:05:18: %PLATFORM-1-CRASHED: Data TLB Miss Exception (0x1100)!
Sep 7 04:12:43: %PLATFORM-1-CRASHED: Debug Exception (Could be NULL pointer dereference) Exception (0x2000)!
Sep 7 05:35:09: %PLATFORM-1-CRASHED: Debug Exception (Could be NULL pointer dereference) Exception (0x2000)!
Sep 7 08:21:37: %PLATFORM-1-CRASHED: Data TLB Miss Exception (0x1100)!
Sep 7 11:13:18: %PLATFORM-1-CRASHED: Data TLB Miss Exception (0x1100)!
Replacement Version 12.2(55)EX2
Sep 7 16:34:48: %PLATFORM-1-CRASHED: Debug Exception (Could be NULL pointer dereference) Exception (0x2000)!
Sep 8 03:39:38: %PLATFORM-1-CRASHED: Data TLB Miss Exception (0x1100)!
Sep 8 18:26:06: %PLATFORM-1-CRASHED: Data TLB Miss Exception (0x1100)!
Sep 9 18:14:38: %PLATFORM-1-CRASHED: Debug Exception (Could be NULL pointer dereference) Exception (0x2000)!
More detailed syslogs are in the attaced 'crash-logs.txt' file.
The device is running OSPF (it is in an NSSA). I have several other devices configured almost the same running the same IOS in my network and they are working fine.This does make the third out-of-box 3560C Cisco that has failed on me within a few days.