RPS and Cisco Catalyst 2950 and 3550 switches

We are doing experiments with RPS and CC 2950 and 3550. When we unplug the main power, the RPS takes over and feeds the switch with power. But when we plug the main power back again, the switch contiues to take power from the RPS. How is the power reduncancy achieved with CC 2950 and/or 3550s?
Thanks in advance,
Dardan

You will need to press the active/standby button on the RPS for the internal power supply in the switch to take over. Note that this can cause the switch to reload and do it in your maintenance window if this switch is in production.
http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCdx81023

Similar Messages

DHCP on Cisco Catalyst 2950 Switch

Hello
I need to configure my cisco catalyst 2950 series switch in order to act as DHCP server for devices connected to its ports.
Please say me, how to do that ?
Thank you
Narek

Please find the sample DHCP configuration for one of the VLANs.
Interface Vlan1
description Cisco DHCP
ip address 10.10.2.1 255.255.255.0
ip dhcp pool cisco
network 10.10.2.0 255.255.255.0
default-router 10.10.2.1
domain-name mydomain.com
dns-server 10.10.2.10
netbios-name-server 10.10.2.15
lease 7
A 24 hour lease is the default if left out and the netbios-name-server is WINS in the Windows world.
If you want to use DHCP server for other VLANs as well create similar DHCP pools and assign the DG to the corresponding VLAN interface IP.
HTH, rate if it does
Narayan

Cisco Catalyst 2950/2960/3750 Multicast Traffic Preference

Hello all,
we, as a student company act as an ISP for university dormitories. We would like to (if it's possible) deploy QoS to prefer multicast traffic over all other types of traffic.
Devices used in network:
Acces layer: Cisco Catalyst 2950, 12.1(22)EA14
Dristribution layer: Cisco Catalyst 2960G, 12.2(58)SE1
Core layer: Cisco Catalyst 3750G, 12.2(52)SE
Do you see any possibility to solve this with these devices? We have almost no experience with QoS, therefore any help would be greatly appreciated.
Thanks in advance.

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Posting
Hmm, I think it should be doable although the 2950s, if non-E variants, are especially weak in QoS features. I.e. those might create some issues.
With the 2960G and 3750G, you often will create problems when you enable QoS because QoS, by default, allocates its buffers resources for 4 egress queues per port rather than using all for 1 egress queue per port. However, this can be countered by QoS parameter tuning, but that takes some QoS expertize to match to your traffic and your overall QoS policy.

Last version Cisco Catalyst 2960-24PC-L Switch (bugs study)

Hi team,
I need know, what´s the last IOS version to Cisco Catalyst 2960-24PC-L Switch and understand the bug study about these versions?
How make a bug study?
If you have any information, please let me know.
Regards,
Yerko.

Latest release as of January 14th is 15.0.2-SE5 (Release Nov 6, 2013)
There aren't any public utilities in the Cisco website that provides you with a bug study.
We have a bug tracker https://tools.cisco.com/bugsearch/?referring_site=popular but it will be extremely time consuming to identify each bugs and if you are affected.
If you are a Cisco Advanced customer with optimization services in your contract, this deliverable can be done for you at no cost.

Recommended IOS XE version for Cisco Catalyst 4500X-16 SFP+ Switch

Could someone confirm IOS XE version for Cisco Catalyst 4500X-16 SFP+ Switch please.
It already has 03.06.00.E on it. I am planning to configure VSS on it with similar switch.
VSS will participate in various Etherchannels (MES).
Just wondering if there are any known bugs in this IOS XE release.

Use the Bug Search Tool to look for issues with vss, vsl, etc.
https://tools.cisco.com/bugsearch/

Debian Linux Bonding and Cisco Catalyst 3750 - best practise?

Hello everybody,
I would like to know what's best practice to do this:
The two NICs of a Debian Linux server wants to be connected with two Switchports of a Cisco Catalyst 3750 switch(stack). My goal is to have load-balancing and failover.
My /etc/network/interfaces looks like this:
iface bond0 inet static
       address 192.168.0.30
       netmask 255.255.255.0
       network 192.168.0.0
       broadcast 192.168.0.255
       gateway 192.168.0.1
       dns-nameservers 192.168.0.10 192.168.0.20
       dns-search xyz.mycompany.com
       slaves eth0 eth1
       bond_mode ???
       bond_miimon 100
       bond_downdelay 200
       bond-updelay 200
First question: What bond mode should I use?
The switchports looks like this:
interface GigabitEthernet3/0/4
switchport access vlan 20
switchport mode access
spanning-tree portfast
What changes are necessery here? Something like this?
interface GigabitEthernet3/0/4
switchport trunk encapsulation dot1q
switchport mode trunk
spanning-tree portfast
Thanks a lot for suggestions, hints, etc.! :-)
Greets
Stephan

Hi Michael,
thanks a lot for your answer - and sorry for my late reply!
I like to show you my solution - I hope that it is a solution. ;-)
My config on the switch(stack):
switch#show etherchannel summary
Group Port-channel Protocol    Ports
------+-------------+-----------+-----------------------------------------------
2      Po2(SU)         LACP      Gi3/0/3(P) Gi4/0/3(P)
switch#show running-config interface GigabitEthernet 3/0/3
Building configuration...
Current configuration : 172 bytes
interface GigabitEthernet3/0/3
description myserver, eth0
switchport access vlan 20
switchport mode access
channel-group 2 mode active
spanning-tree portfast
end
lansw01#show running-config interface GigabitEthernet 4/0/3
Building configuration...
Current configuration : 172 bytes
interface GigabitEthernet4/0/3
description myserver, eth1
switchport access vlan 20
switchport mode access
channel-group 2 mode active
spanning-tree portfast
end
switch#show running-config interface port-channel 2
Building configuration...
Current configuration : 82 bytes
interface Port-channel2
switchport access vlan 20
switchport mode access
end
The /etc/network/interfaces of my Debian machine looks like this:
auto lo
iface lo inet loopback
auto bond0
        iface bond0 inet static
        address 192.168.1.xxx
        netmask 255.255.255.0
        gateway 192.168.1.xxx
        dns-nameservers 192.168.1.xxx
        dns-search xxx.xxx.xxx
        bond-mode 4
        bond-miimon 100
        bond-downdelay 200
        bond-updelay 200
        bond-lacp-rate 1
        slaves eth0 eth1
This setup seems to work well. But I'm wondering that there is nothing with "trunking" in my setup. Would you like to give me your opinion about this?
Thanks a lot and many greets
Stephan

Conecting etherchannel between cisco catalyst 6509 and hp procourve 9308

Impossible to connet 2 ports 1000base sx agrouped via etherchannel / lacp or pagp between a catalyst 6509 and a hp procourve 9308. Please do you know he best configuration? thanks in advance

Hola Luis,
the link would have to be LACP (since PAgP is Cisco proprietary). So, on the Cisco side, the config should look like this:
interface GigabitEthernet0/1
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
interface GigabitEthernet0/2
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
interface Port-channel1
switchport trunk encapsulation dot1q
switchport mode trunk
On the HP side, check how the trunk group is configured there. I assume you have used the ´trunk deploy´ command after configuring the HP trunk group ? Also, which spanning-tree mode do you have running on the Cisco and the HP ?
Saludos,
GP

Linksys SRW 224G4, Cisco Catalyst 3650G and management via trunk

I have couple of Linksys SRW 224G4 and SRW 2024 connected together with Cisco C3650 switches. For my part of network VLAN100 is used as administrative vlan and VLAN1 as defult (on trunks or unused ports).
Altrough most of switches work fine, on all older models of SRW224G4 (hw 1.0, various firmware versions) there is no connectivity to management utilities (also ping won't work) via trunk (where of course VLAN100 is present). At the same time there is no problem with access on "local" ports (assigned to VLAN100) and there are no problems with traffic on VLAN 100 along the network.
For example:
Two computers (A and B), two switches (sw1 - old SRW224G4 and sw2 - Cisco switch), are connected as follow:
A--VLAN100--sw1--TRUNK--sw2--VLAN100--B
Swicthes have VLAN100 as management VLAN, computers are connected to access ports (untagged).
A has access to management on sw1 and sw2 and connectivity with B
B has access to management on sw2 and connectivity with B but has no access to management on sw1...
If sw1 and sw2 are same, old SRW224G4 - everything works fine.
Newer versions of SRW224G4, SRW2024 and SLM2024 works OK.
Why it doesn't work?
Thank for your attention.

I don’t thing there is difference with the old and new versions of the SRW224G4 unless there is a reported case of firmware problem with the said switch. As what you have said you also tested the new version of SRW224G4 and other models of these manage switches and seemed to work. I suggest totally resetting the said switch, making sure you updated the latest firmware version and making the necessary VLAN configurations.
Other than these, I suggest contacting Cisco Tech support to further look into your concern. I believe this unit belongs to the business series devices that Cisco is now supporting. Try to go to this link for the other business series devices and the site where you can get hold of Cisco for support:
http://www.cisco.com/web/products/linksys/index.html

Cisco catalyst 2950 12.1 (22)EA4 not connecting to router

I shipped a newly configured cisco 2950 switch and walked a individual through connecting switch to uplink port to router. When the user connects cable from Dlink to port1 on switch we get no activity light on port 1. I went into switch by having crossover cable connected from new switch to old switch and change port speed and duplex and still have the same problem. User is utilizing a cat5 cable that worked on old switch. Any ideas?

Hi
you can check the status of the ports on the switch with the 'show interface fa 0/x' command.
You should see something like this if the port and cable are Ok:
#show interfaces fastEthernet 5/2
FastEthernet5/2 is up, line protocol is up (connected)
Hardware is C6k 100Mb 802.3, address is 000d.28b7.fd09 (bia 000d.28b7.fd09)
Description:
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Full-duplex, 100Mb/s
HTH.
Regards.

Error in switch ports POE model, "Cisco Catalyst 2960S-24PS-L Switch"

I have problem with the poe switch Cisco Catalyst 2960S-24PS-L posts does not respond, and me the following error resporta was t
%PLATFORM_ENV-3-ILP_PORT_POST_ERR: %s can’t be brought up because it failed POST
in Inline Power test.
he source of that error and what are the possible causes

Hey Dustin,
Device needs to be RMA'ed. The inline power supply has failed.
HTH.
Regards,
RS.

Trunking between Huawei S3900 and Cisco catalyst 3750

One of my edge Huawei S3700 switches is dead, I am going to replace it with a Cisco switch Catalyst 3750 series PoE-48 via a trunk link with GE fiber port on both ends, please see the diagram below.
trunk trunk
Core switchrouter<----------S3700<--------------->Cisco Catlyst 3750
I haven’t touch Cisco switch for many years, I would like to ask the following questions:
1.)      Do I need to take any precaution before connecting this Cisco switch into my Huawei network? Only one link between S3700 and C3750, so I don't need worry anout STP? Do I need to worry about Default vlan regarding trunking port?
2.)      I need to use different trucking protocol e.g. 802.1Q etc to interconnect these two switches (S3700-28TP-SI-AC and Catalyst 3750), please see the following configuration:
For C3750:
switchport trunk encapsulation dot1q
switchport trunk native vlan (What you want)
switchport trunk allowed vlan (VLANs required)
switchport mode trunk
spanning-tree portfast trunk
For S3700:
port link-type trunk
port trunk permit vlan all
Do you think the configurations above are right?
Do I need to manually enter Duplex and speed options ?
3.)If the configurations are not right, then what are the commands for trucking port/link should I use on the Cisco switch (it uses IOS software) and Huawei switch? Procedures of the commands would be really helpful !
Any information and help would be much appreciated.
Thanks
Regards

Hello
3750 - basic config
================
See as you are using this switch as an host switch you need to make sure ip routing isn't enabled ( it isn't by default)
Also it looks like the s3700 Huawei switch is permitting all vlans and I assuming the default native vlan is 1 ( as is cisco) so no need to specify the native either.
If you are requiring the access ports on this new cisco 3750 to be in multiple vlans then usually cisco to cisco interconnect would ultise VTP for vlan propagation however this wont occur between the Huawei switch, so you will need to manually add the vlans on the switch also.
so to summarize below is a basic host switch config for 3750.
conf t
no ip routing
hostname XXXXXX
username xxxx privilege 15 secret xxxxxxx
service password-encryption
enable secret xxxxx
security passwords min-length xx
security authentication failure rate xx log
aaa new-model aaa authentication login default local
logging buffered 4096
no service udp-small-servers
no service tcp-small-servers
service timestamps debug datetime msec localtime
service timestamps log datetime msec localtime
no ip domain-lookup
spanning-tree mode rapid-pvst
spanning-tree portfast bpduguard default
int vlan x ( this may or not be vlan 1 - its whatever the L3 vlan interface is on the core switch for management connectivity)
ip address x.x.x.x y.y.y.y.
exit
ip default-gateway x.x.x.x ( ip address of CORE SVI management interface)
vlan x,x,x,x ( add the L2 vlans to the switch as vtp would not be used between the Huawei switch)
exit
int gigx/x
Description Link to Huawei switch
switchport trunk encapsulation dot1q
switchport mode trunk
switchport nonegotiate
no shut
( no need for spanning-tree portfast trunk- this is usually only for ESX host ports)
int rang fa0/1 -48
Description - Access-ports
switchport host
switchport access vlan x (wihout this defaults to vlan 1)
no shut
clock timezone gmt 0
ntp peer
ntp server x.x.x. prefer
res
Paul

100BaseFX and Cisco Catalyst 3750G

Hi,
I need some help, I have a factory plant running some IE 3000 and Rockwell Stratix 8000 with GLC-FE-100FX-RGD transceiver to some older switches I need to replace the idea is to use Cisco 3750G, I saw in the Cisco 3750G datasheet a GLC-GE-100FX= transceiver would they work together point-to-point? what sort of connector do they use are they LC also?
The idea is to use 100BaseFX MM because of the costs, distance (800M) and the bandwith being light.
Thank You

The GLC-GE-100FX= and the GLC-FE-100FX-RGD SFPs have the same optical performance specifications, so they will interoperate across a link. The RGD SFP has a higher operating temperature range for industrial applications (per data sheet), where the IE 3000 is typically installed.
Hope this helps!

MGBSX1 and Cisco catalyst 2960 24-PCL compatibilty

Hi,
I'd like to know if someone has a solution to install MGBSX1 with C2960-24-PC-L because I have to buy a lot of transceiver and the price of GLC-SX-MM is x5 the price of MGBSX1
thx

1) I believe 10/100 Ethernet uses 4 wires and 1000 Ethernet uses 8 wires. Will the uplink ports connect all 8 of its wires across the 10/100 ports?
Depends. If both uplink ports are 1Gig and you have a Cat5 cable with 2 pairs terminated (4 links) then the speed will only negotiate to 100mbps.
2) Can a 10/100 port connect to another switch using a crossover cable? If so, what happens if a 10/100 port is connected to a 1000 port? Would any damage to the switch occur? As long as you leave speed and duplex setting to auto and MDI/MDI-X will kick in automatically.

Catalyst 2950 and 3750 console not responding after successful boot

i just removed two switches from my ccie R&S lab but now i has a very strange problem switches is working fine but i can not access from console after boot .

Do you have any other devices you could use to check your terminal emulator is working? I had an issue with hyperterminal once, that it would not transmit following a reboot of the device it was managing. But in my case, re-booting the PC (with a proper power cycle) cleared the problem, so it couzld have been something to do with flow control.
Kevin Dorrell
Luxembourg

Cisco Catalyst 2924 xl Series Switches

How I can restore the basic IOS on the switch. The switch have no ios. The switch prompt on Switch: not Switch# or switch>.
Thanks
Syed Hasan,
[email protected]

Hi Syed,
You have to first check if there is any image in switch or not so that you can manually boot from switch: prompt but as you said there is no image in the switch you have to go for xmodem procedure to upgrade the switch.
Have a look at this link and just follow step by step instructions and you will be good to go
http://www.cisco.com/en/US/products/hw/switches/ps607/products_tech_note09186a00800946e5.shtml#xmodem
HTH, if yes please rate the post.
Ankur

RPS and Cisco Catalyst 2950 and 3550 switches

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