Cisco Switching/Routing :: Power Series Cabling On 3750 Switches?
Oct 22, 2012
I am connecting power cable (series power cables) on 3750 stacks. i have connected them the same way the stack cables are connected i.e. fo rexample on a stack with 3 3750s:
1- fitst slot on fist switch connected the second slot last switch in the stack.
2- second slot/ port on the first switch to the first on second and seoncd on teh second switch to first on the third switch.
this how they are alway been stacked.Now, I need to connect power cables and I have followed the same method for stacks up to 4 switches. it seems that if a stack has more tham 4 switches, then the cabling will be dofferent!?I was wondering what will be on the cabling scheme for stacks more than 4 switches.
I'm thinking about using a 3750 stacking around 4 or 5 switches intead of using one 4500 series switch.
1-My first argument was concerning the budget (one 4500 instead of four or five 3750 in stack mode) ---- Here i think 4 or 5 stacked 3750 is cheap than one 4500 2- My second argument was about harware redundancing that i don't have with one 4500 and that i have with stack mode ----Here i have more hardware redundancing with 3750 3- The bug that we notice today in 2960 and 3750 and not in 4500 4- Simple to manage a 4500 compare to 3750 stack design 5- I was looking also for the one with best backplane ----Here i didn't have any infos concerning the best backplane between 4 or 5 stack 3750 and a 4500. 6- I'm also looking for power redundancing.
211540: Jun 10 10:45:17.935 UTC: %PLATFORM_STACKPOWER-4-UNBALANCED_PS: Switch 4's power stack has unbalanced power supplies 211541: Jun 10 10:46:18.045 UTC: %PLATFORM_STACKPOWER-4-UNBALANCED_PS:
I am getting the below messages on my Cisco 6500 series switches every 1min. The IOS version is 12.2(33)SXI6 & with SUP32-GE-3B
%ILPOWER-7-DETECT: Interface Fa1/1: Power Device detected: Cisco PD %ILPOWER-7-DETECT: Interface Fa1/1: Power Device detected: Cisco PD %ILPOWER-7-DETECT: Interface Fa1/1: Power Device detected: Cisco PD
These messages are I am recieving on few ports only not on all port having IP Phone connected. I tried changing the phone to some other model but that also did not resolved my problem. Also I tried powering on the phone using power adapter but the issue still persist.
Client are not facing any issues due to this error, but still I would like know what can be the issue which is generating these logs.
I have been looking at the Cisco Hardware docs and I can't find anything on the proper way to setup a 2 switch stack for Stackwise redundancy and Stackpower redundancy. Everything details 3 or more switches.
I recently bought a bunch of cisco 3750-x switches. I configured them all and started deploying them. A day later, some of the switches started failing on me. When I connect the power cord to the AC main, the power supply module on the back shows "AC OK" LED Green but the "PS OK" LED shows Red. I started referring to the installation guide and it told me that "PS OK" LED turns RED when output has failed. Guessing this I checked with another power supply module that was working, but still I get the same LED indicators.The original power supply module works with other switches.IOS crash...?
For intervlan routing, Is 'IP routing' command enabled by default on a 6500 series switches based on the IOS?and on 3750 switches, do we need to enable the "ip routing" command manually for intervlan routing?
For intervlan routing, Is 'IP routing' command enabled by default on a 6500 series switches based on the IOS?hes, do we need to enable the "ip routing" command manually for intervlan routing?
power supply problem...?Switch cisco WS-C3750-24P is showing "Unavail" from sh env all.Switch3750#sh env all FAN is OK,TEMPERATURE is OK,SW PID,Serial# Status Sys Pwr PoE Pwr Watts,Does it means that power supply 1 was removed? failed?,Do you know about another command to see more details?
I have 4 switches in a 3750-X stack.Here is the output from the stack why are the switches out of order and I'm not able to bring up switch 1 port 1.
switch 4 port 2 shows not connect it is I've checked the cables.
Power stack name: Powerstack-4 Stack mode: Power sharing Switch 1: Power budget: 695 Low port priority value: 22 High port priority value: 13 Switch priority value: 4 Port 1 status: Shut Port 2 status: Connected Neighbor on port 1: 0000.0000.0000 Neighbor on port 2: c471.fe84.e100
Switch 2: Power budget: 713 Low port priority value: 21 High port priority value: 12 Switch priority value: 3 Port 1 status: Connected Port 2 status: Connected Neighbor on port 1: c471.fe85.3000 Neighbor on port 2: c471.fe80.2800
Switch 4: Power budget: 697 Low port priority value: 19 High port priority value: 10 Switch priority value: 1 Port 1 status: Connected Port 2 status: Not connected Neighbor on port 1: c471.fe80.2800 Neighbor on port 2: 0000.0000.0000
Switch 3: Power budget: 710 Low port priority value: 20 High port priority value: 11 Switch priority value: 2 Port 1 status: Connected Port 2 status: Connected Neighbor on port 1: c471.fe84.e100 Neighbor on port 2: c471.fe7f.eb00s
I am new to this and have ran into some problems. I butilt up my router I was able from the rom> prompt to get my router to boot from SLOT0:xxxxx
Then I did the copy command copy slot0:xxxxxxx bootflash:xxxxxxxMy router starts up fine. I did all my configurations and did my copy run start when I was done. As this is what I do on my 3750s.
My router lost power and rebooted and I lost everything it did not boot up to my last configuration.How do I save my configurations when I am done ? How do I get it to boot from that configuration every time?
I want to know how much minimum power required for swicth catalyst 3750.I want to know cause in my building place, the power in unstable so it make my switch corrupt/damage even i add power consistancy....
How much amount power to the ups and ups to switch?
We need to implement VLANs on my company's network. I have 3750 L3 swtich, ive setup 3 vlans for testing. ive setup SVI everything.now how do I connect it to 3com that will also use VLANs. should I set trunk port of cisco and 3com? or no need?
I want to limit the bandwidth of my Catalyst 3750 series switch, I read the cisco documentation and I applied the commands but I didn't get the wanted results.
For the outbound traffic it's ok, but for the inbound traffic I used policing but I get an unstable traffic. I used, an access list and a class-map to classify the traffic and then a policy-map.(I followed the steps mentioned in this site: [URL]
If I have two stackable switches one switch uplinks to one 6509 core switch and the other connection uplinks to another 6509 core switch, and also the other stackable switch does not connect to the core switches. Because I am using hsrp and also we are not using vss then one uplink to the core is not in used only ones is so then how does creating an etherchannel between does two uplinks to both core switches benefit me in anyway such as more bandwith and using both uplinks at the same time or I'm I wrong?
If I have two stackable switches were only one stackable switch has two uplinks one uplink goes to one core 6509 switch and the other uplink goes to the other 6509 core switch can a Layer 3 etherchannel be used if each uplink go to a different core switch, by the way hsrp is running between both switches and also can you give an example how data will be routed from the stackable switch through the ethernetchannel to one of the core switch accross the WAN to another core switch?
we are using 3750 and 2950 switches both of them do not support vlan up to 4000 .we need vlan about 3000 .Whic cisco series switch do support vlan up to 4000.
2950 S-SW1.3(config-vlan)#exi
Proposed configuration has too many VLANs for this platform. Reduce the number of VLANs proposed.
S-SW1.3(config)#end 3750 SW1(config-vlan)#exi
proposed configuration exceeds the limit of 1005 VLANs that can be supported on this platform. Reduce the number of VLANs proposed to be within this limit.
I have a new Cisco 2960 S series switch with a basic configuration that needs to be uplinked or daisy chained to a Cisco 3750 switch. I am not getting any connectivity to the network with either a straight through or crossover cable. the port remains in amber but a 'show interface' indicates that the interface is up. I can manage the switch with a PC patched into any port on the switch with a static IP address. Must be something very simple that I am missing. Outlined below is the configuration.
we are using cisco 6509 series switches as core switches. and Cisco 4510,4507 series switches as edge switches. all the vlans are created at core switches and propogating to edge switches through VTP. we are using OSPF as routing protocol at core switch for internal routing. till now we are using 4510,4507 switches as layer 2 switches. Since, 4510 & 4507 switches are hign end swithces i want use them as layer 3 switches instead of layer 2.if i change these switches from layer 2 to layer 3 does it make any impact on our network or better to keep them as layer 2 switches.if i change these switches to layer 3 is there any advantage i will have.
I have to use 9 Cisco 300 series switches to build a new network. I will use one of them (core switch) in L3 for routing between Vlans (3 Vlans) and the others in L2. Is there a software to centralized all switches configuration, operation and monitoring?
OSPF normally only comes with IPservices image and not IP Base image. The 3560-C series data sheet says that it only suport IP Base image, yet it mentions that support for OSPF in included. Are there any restictions in the OSPF support?.
My task is to upgrade a couple of 6500 series switches, 6513 with SUP720/MSFC3 (WS-SUP720) and Policy Feature Card 3 (WS-F6K-PFC3B) installed. How to upgrade those switches if in SSO redundancy mode with two SUPs installed?
I understand that it is good to connect to the MSFC3 via console and upgrade this first, is this correct?
I also have to upgrade some 6509 but I only can test it on one 6509-E, how to get everything up to date. [code]
some of the features of 6500 are enabled by default and woudn't appear in the "Show run". See the command below and how do I make sure whether these featues are enabled by default or not. Would it appear in the config if enabled?
ip verify unicast source reachable-via rx ip verify unicast source reachable-via any
storm-control broadcast level 70
what are the difference between the commands below and can they be enabled together.
spanning-tree guard root vs spanning-tree loopguard default vs spanning-tree guard loop
I'm trying to get some clarity on power stacking 3750X switches. I have a new stack of 6 switches. I know I can only have 4 in a power stack and all 6 in the data stack with a max of 8. I'm trying to find the proper way to connect the power stack cables for the 4 switch power stack.
In my office we bought 7 cisco 3750X - 48PS switches. We configured Data Stacking between those switches. We also want to configure Power Stacking between those 7 devices.
I found in the Data Sheet that we can only configure 4 devices in power stacking at a time. If it is like that how to configure the rest of 3 devices. Need configuring power stacking between those devices in a better way..
power stack cable part no we have is CAB-SPWR-30CM
I am using a 3750 as a default gateway for multiple Vlans on a few 2960 switches. The trunk lines are configured and working and I have assigned ip addresses to each of the Vlan interfaces on the 3750. My issue is that I can only ping the ip address on the Vlan interface of the 3750 if I have a working computer plugged directly into the Vlan on the 3750. I only have 3 vlans on the 3750 that have hosts directly connected (vlans 2, 10 and 40) the other vlans ( 20 and 70) don't have any clients plugged into them on the 3750 but the hosts reside on 2 different 2960s that connect via trunk ports. How do I keep the vlan interface on the 3750 switch pingable when I don't have hosts directly connected in that vlan on the 3750? (yes, I have enabled ip routing on the 3750)
I have a simple design with 3750. I configured a route-map which define a next hop. I defined this route-map on a policy on a vlan interface.When I test some ping and a debug ip policy and it seems that my policy never match.Is there any mechanism that prevent the switch from using PBR? I think of CEF .
