Cisco Catalyst 2960X-24PS-L - Management Issues

I am having issues connecting to the new Cisco Catalyst 2960X-24PS-L switches via USB.
I am successfully connecting from the same PC to Cisco 2960C series and Cisco 2960S switches, but the 2960X switches aren't always working.
Any hints?
Matt

So I was able to get it working:
Updated to latest version of Putty, connected something to a switch port and then made sure flow control was off.
A bit different than the older switches.

Similar Messages

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.

Cisco Catalyst 2960X-48FPD-L Whit SFP+ 10GB

Hello!!
Can i use 10Gb Link between a Cisco Catalyst 6500 whit a Cisco Catalyst 6900 Series 8-Port 10 Gigabit Ethernet Fiber Module (WS-X6908-10G-2T) card and 10GBASE-SR X2 Fiber port, and . And in the other side use a Cisco Catalyst 2960X-48FPD-L (have two SFP+ bays) whit SFP-10G-SR=  (multimode fiber)
this solutions works???
another question:
WS-X6908-10G-2T card   comes equipped with DFC4. What mean that? requiere another slot in a 6500 chassis??
thanks

Hi,
Q1:- yes it should work.
http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6500-series-switches/data_sheet_c78-648212.html
2)
WS-X6908-10G-2T card   comes equipped with DFC4. What mean that? requiere another slot in a 6500 chassis??
Answer: No DFC4 is the sub-module which would sit on the line card WS-X6908-10G-2T. It doesnt require any spare slot.
WS-X6908-10G-2T: comes equipped with DFC4 for distributed forwarding, supporting 256K forwarding entries, increased ACL entries to 64K, increased Netflow entries to 512K, and increased IPv4 forwarding speed to 60 Mpps
HTH

Cisco Catalyst 2960X Ethernet Switch

"I want to buy Catalyst 2960-X series switches like WS-C2960X-24PS-L,WS-C2960X-24PD-L, buy I'm not very well know about c2960x series. Can someone help me ?"--from yahoo answer.
All Catalyst 2960-X Series Switches use a single Universal Cisco IOS Software Image for all SKUs.Cisco Catalyst 2960-X Family of Switches are available with the LAN Base and LAN Lite feature sets.
WS-C2960X-24PS-L Overview
Catalyst 2960-X 24 GigE PoE 370W, 4 x 1G SFP, LAN Base Switch
WS-C2960X-24PD-L Overview
Catalyst 2960-X 24 GigE PoE 370W, 2 x 10G SFP+, LAN Base Switch

If you buy the LAN Base model, you'll have all of Cisco's normal switching features and options. My company has purchased many of these switches, and they work very well. Remember, these are access layer switches. If you're looking for something to be an aggregate switch for things that push a lot more data (ex. several wireless controllers), you'll want to go for something more powerful.

Cisco Catalyst 2960-X and Cisco Prime compatibility

Hello All,
I had review all the compatibility matrix of versions of Cisco Prime 1.2, 1.4 and 2.0, and just can't find the Cisco Catalyst 2960-X series as a listed device, which really surprises me.
Can you clear that out??
Thanks,

The 2960X (and XR) support was added with Device Pack 2 for PI 2.0. It was released on 22 January 2014 and is available here.
(PI 2.1 won't be out until later this year, release date not yet announced.)
Following are the 2960X/XR types added:
Cisco Catalyst 2960-X Series Switches
Device Type
SYSOIDS
S/W Version
Software
Cisco Catalyst 2960X-24TS-L Switch
OID:1.3.6.1.4.1.9.1.1699
>=12.1
IOS
Cisco Catalyst 2960X-48FPD-L Switch
OID:1.3.6.1.4.1.9.1.1690
>=12.1
IOS
Cisco Catalyst 2960X-48LPD-L Switch
OID:1.3.6.1.4.1.9.1.1691
>=12.1
IOS
Cisco Catalyst 2960X-48TD-L Switch
OID:1.3.6.1.4.1.9.1.1692
>=12.1
IOS
Cisco Catalyst 2960X-24PD-L Switch
OID:1.3.6.1.4.1.9.1.1693
>=12.1
IOS
Cisco Catalyst 2960X-24TD-L Switch
OID:1.3.6.1.4.1.9.1.1694
>=12.1
IOS
Cisco Catalyst 2960X-48FPS-L Switch
OID:1.3.6.1.4.1.9.1.1695
>=12.1
IOS
Cisco Catalyst 2960X-48LPS-L Switch
OID:1.3.6.1.4.1.9.1.1696
>=12.1
IOS
Cisco Catalyst 2960X-24PS-L Switch
OID:1.3.6.1.4.1.9.1.1697
>=12.1
IOS
Cisco Catalyst 2960X-48TS-L Switch
OID:1.3.6.1.4.1.9.1.1698
>=12.1
IOS
Cisco Catalyst 2960X-24PSK-L Switch
OID:1.3.6.1.4.1.9.1.1700
>=12.1
IOS
Cisco Catalyst 2960X-48LPS-S Switch
OID:1.3.6.1.4.1.9.1.1701
>=12.1
IOS
Cisco Catalyst 2960X-24PS-S Switch
OID:1.3.6.1.4.1.9.1.1702
>=12.1
IOS
Cisco Catalyst 2960X-48TS-LL Switch
OID:1.3.6.1.4.1.9.1.1703
>=12.1
IOS
Cisco Catalyst 2960X-24TS-LL Switch
OID:1.3.6.1.4.1.9.1.1704
>=12.1
IOS
Cisco Catalyst 2960-XR Series Switches
Device Type
SYSOIDS
S/W Version
Software
Cisco Catalyst 2960XR-48FPD-I Switch
OID:1.3.6.1.4.1.9.1.1797
>=12.1
IOS
Cisco Catalyst 2960XR-48LPD-I Switch
OID:1.3.6.1.4.1.9.1.1798
>=12.1
IOS
Cisco Catalyst 2960XR-48TD-I Switch
OID:1.3.6.1.4.1.9.1.1799
>=12.1
IOS
Cisco Catalyst 2960XR-24PD-I Switch
OID:1.3.6.1.4.1.9.1.1800
>=12.1
IOS
Cisco Catalyst 2960XR-24TD-I Switch
OID:1.3.6.1.4.1.9.1.1801
>=12.1
IOS
Cisco Catalyst 2960XR-48FPS-I Switch
OID:1.3.6.1.4.1.9.1.1802
>=12.1
IOS
Cisco Catalyst 2960XR-48LPS-I Switch
OID:1.3.6.1.4.1.9.1.1803
>=12.1
IOS
Cisco Catalyst 2960XR-48TS-I Switch
OID:1.3.6.1.4.1.9.1.1804
>=12.1
IOS
Cisco Catalyst 2960XR-24PS-I Switch
OID:1.3.6.1.4.1.9.1.1805
>=12.1
IOS
Cisco Catalyst 2960XR-24TS-I Switch
OID:1.3.6.1.4.1.9.1.1806
>=12.1
IOS
Cisco Catalyst 2960XR-48FPD-L Switch
OID:1.3.6.1.4.1.9.1.1807
>=12.1
IOS
Cisco Catalyst 2960XR-48LPD-L Switch
OID:1.3.6.1.4.1.9.1.1808
>=12.1
IOS
Cisco Catalyst 2960XR-48TD-L Switch
OID:1.3.6.1.4.1.9.1.1809
>=12.1
IOS
Cisco Catalyst 2960XR-24PD-L Switch
OID:1.3.6.1.4.1.9.1.1810
>=12.1
IOS
Cisco Catalyst 2960XR-24TD-L Switch
OID:1.3.6.1.4.1.9.1.1811
>=12.1
IOS
Cisco Catalyst 2960XR-48FPS-L Switch
OID:1.3.6.1.4.1.9.1.1812
>=12.1
IOS
Cisco Catalyst 2960XR-48LPS-L Switch
OID:1.3.6.1.4.1.9.1.1813
>=12.1
IOS
Cisco Catalyst 2960XR-48TS-L Switch
OID:1.3.6.1.4.1.9.1.1814
>=12.1
IOS
Cisco Catalyst 2960XR-24PS-L Switch
OID:1.3.6.1.4.1.9.1.1815
>=12.1
IOS
Cisco Catalyst 2960XR-24TS-L Switch
OID:1.3.6.1.4.1.9.1.1816
>=12.1
IOS

Does the Catalyst 2960x-48TD support Cisco's IGMP Snooping MIB?

Does the Catalyst 2960x-48TD support Cisco's IGMP Snooping MIB? We have a number of switches from different vendors and have recently begun switching to Cisco's, however unlike the other brands I am unable to audit the IGMP Snooping settings via SNMP. It appears that while the switch supports IGMP Snooping it does not support the CISCO MIB for IGMP Snooping. Is this a known bug and is it fixed in any of the later releases?
Our company is purchasing and deploying C2960X-48TD's and I am tasked with updating our system audit software

Hi Sean,
Nov 21 15:40:42.390: %MCAST-SPSTBY-6-ETRACK_STATS_LIMIT_EXCEEDED: Number of entries in IGMP snooping explicit-tracking statistics has exceeded the maximum limit (32000)
The above log message is written because the number of explicit-tracking statistics entries is bounded to avoid monopolizing of system resources by IGMP/MLD snooping. The explicit-tracking statistics database maximum size is set to the same as that of explicit-tracking limit.
The statistics are split into two banks: permanent and volatile. The statistics entries will be stored permanently (volatile) until the permanent entries threshold is reached, after which the statistics will be stored temporarily up to the database maximum size. When the size of the database exceeds the permanent threshold, a group will be removed on receiving an IGMP/MLD leave. Groups can be removed whether they were installed above or below the permanent threshold. If the number of statistics entries grows beyond the maximum size of the database, then no statistics will be stored for any newly formed groups.
You can disable ip igmp snooping explicit-tracking by the following
1) Configure "no ip igmp snooping explicit-tracking"
2) Configure "ip igmp snooping limit track 0" on global.
3) After ET is disabled, please do a "clear ip igmp snooping statistics".
Here is a reference URL (please make sure you copy and paste the entire link to the browser):
http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/snooigmp.html#wp1062242
HTH
Luke

Cisco Catalyst Supervisor communication issue?

Hey all,
I had a slight issue regarding two supervisor engines on a Cisco Catalyst 4500 device where the keepalives between the two sups lost communication for roughly 50~ seconds. This triggered an SNMP alert but it looks like they regained connectivity before a switchover was initiated. Has anyone ever experienced anything like this before?

You obviously need to configure the ports etc. but the switch should recognise the module as long as you have an IOS that supports it.
There is nothing extra to do, you just slot the module in.
If you are connecting all your distribution switches to the 6500 then if you don't need a vlan/IP subnet in multiple buildings then you should use L3 connections to the 6500.
Note also that you may want to consider at some time in the future a second supervisor or another chassis as this 6500 with one supervisor is a single point of failure ie. if it goes then there is no communication between buildings.
Jon

Cisco Prime Infrastructure 2.2: Catalyst 2960X-24TS-LL Switch Collection Failure

Hello,
I've Upgraded Prime Infrastructure to Version 2.2.0.0.158. Now our Catalyst 2960X-24TS-LL switches show an error message, when they are added to the inventory. The error is as follows:
Partial Collection Failure; Collection Status : Failed feature(s).
The 2960X-24TS-LL is listed under the supported devices list and other switches (e.g. WS-C2960X-48FPS-L) got inventorized without any problems.
Did anybody see this issue and can tell me how to solve it.
- Benjamin

- Getting that one too, since running 2.2 (Failed Features) ; suggest opening a TAC case.
M.

VLAN trunking from Cisco Catalyst 3750 to Cisco SF300-48P issue and related

Hello expert,
I'm having difficulties to configure VLAN trunking between Cisco Catalyst 3750 switch with Cisco SF300-48P switch and my workstation unable to get any DHCP IP from our DHCP server via Cisco SF300-48P switch. Below is the snippet of configuration on both switches:
[Cisco Catalyst 3750 Switch]
interface GigabitEthernet1/0/45
description NCC-CC-1stFlr
no switchport trunk encapsulation dot1q
no switchport trunk allowed vlan 101-103
spanning-tree portfast
[Cisco SF300-48P Switch]
interface fastethernet48
spanning-tree link-type point-to-point
switchport trunk allowed vlan add 101-103
macro description switch
!next command is internal.
macro auto smartport dynamic_type switch
interface fastethernet29
switchport mode general
switchport general allowed vlan add 103 tagged
switchport general pvid 103
Are these are correct? Kindly advice!
Thank you very much!
Regards,
Alex

Hi Alex,
for the trunk port on Catalyst on port GE 1/0/45, we need to enable the trunk and for on encapsulation dot1q because this catalyst model is ISL capable also and the SF300 working only with Dot1q Encapsultion
The configuration on catalyst should :
#config terminal
#interface Gi 1/0/45
# switchport encapsulation
#switchport trunk encapsulation dot1q
#switchport mode trunk
#switchport trunk allowed vlan 101-103
#spanning-tree portfast
For SF300 the port trunk it looks fine but for the port where the PC should receive an IP address
#interface fastethernet29
#switchport mode access
#switchport ccess vlan 103
Please let me know after this configuration
Thanks
Mehdi
Please rate or mark as answered to help other Cisco Customers

Ask the Expert: Layer 2 Security on Cisco Catalyst Platforms

With Wilson Bonilla
Welcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about about issues in designing, planning, and implementing Layer 2 security in your LAN network with expert Wilson Bonilla.
Wilson will cover topics that network engineers face daily such as Spanning Tree Protocol security, private VLANs, IP source guard, protected ports, dynamic ARP inspection, virtual LAN access-control lists (VLAN ACLs), and Dynamic Host Configuration Protocol (DHCP) snooping over Cisco Catalyst platforms. With the fast growth of networks, Layer 2 security is even more critical in the LAN to help your network become more reliable, efficient, and secure. Wilson will answer your questions about LAN networks with Cisco Catalyst switches.
Wilson Bonilla is a technical networking trainer at the Learning and Development Department for Cisco Technical Assistance Center located in Costa Rica. Before joining the Training Department, he worked for the Cisco TAC as a customer support engineer focused on LAN Switching for more than two years. While working on LAN switching, Wilson also had roles such as technical leader and trainer, adding to his area of expertise in Cisco Catalyst Layer 2 switching. He has CCNP routing and switching certification and is currently studying to achieve his CCNA certification in data center.
Remember to use the rating system to let Wilson know if you've received an adequate response.
Because of the volume expected during this event, Wilson might not be able to answer every question. Remember that you can continue the conversation in the Network Infrastructure community, subcommunity, LAN, Switching and Routing, shortly after the event. This event lasts through November, 2013. Visit this forum often to view responses to your questions and those of other Cisco Support Community members.

Hello NetNavi.
Check the post above about MacSec for more information and let me know if you need further clarification, if so I will do my best,
In regards to best practices there is a Cisco document; it describes deployments and best practices in every scenario; Supplicants, authenticator, authentication services and other configurations. Please check it out:
http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6586/ps6638/deploy_guide_c17-663760.html
In regards to Private VLANS:
What is a Private Vlan?
A private Vlan is a way to isolate hosts within the same Vlan or broadcast domain. So even when you might have devices sharing the same broadcast domain they can be isolated, this isolated is configured based on sub-domains also most often called primary and secondary Vlans.
What is a primary Vlan?
The primary Vlan is representation of the private Vlan, a primary Vlan has one or more secondary Vlans, a switch uses the primary Vlan to present traffic from the secondary Vlans to its neighboring devices.
What is a secondary Vlan?
A secondary Vlan is a sub-domain of the primary Vlan. We could say that the secondary Vlans belongs to the primary. The must be associated to a primary Vlan. There are two types of secondary vlans: Isolated and Community secondary Vlans.
What does it happen to host within a secondary isolated Vlan?
Host within the isolated vlan; can’t communicate to neither other host in the same isoalted vlan nor host in a community vlan.
What does it happen to host within the secondary community Vlan?
Host within the community Vlan can communicate with other host assigned to the same community vlan, but they can’t talk to host in other community vlans.
What are the benefits of implementing private Vlans?
Scalability: The most common scenario is a service provider. Imagine all customers of a service provider connected through DSL, cable modem… it’s very likely that all customers belong to the same broadcast domain, however if that’s the case why is it that I can’t use my neighbor’s printer, or maybe why is it that I can’t access the files he has store in his computer, (security) we are in the same broadcast shouldn’t I be able to at least ping his ip address?. Well that’s because the ISP must guarantee some type of security for their customers, and because put every single customer that they have in a single Vlan is not scalable they use private Vlans.
Examples:
ISP use private vlans to protect from security bridges, Private vlans and isolated Vlans are used to protect personal information for example from one customer to another.
DMZ; Many implementations utilizes private vlans in a DMZ to limt or minimize that risk of a compromised server.
I would like to share this documentation with you for further information and configuration guidelines
http://www.cisco.com/en/US/tech/tk389/tk814/technologies_configuration_example09186a008017acad.shtml#hw
This document explains what Cisco Catalyst switches support Private Vlans.
http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a0080094830.shtml
Let me know if you have further questions.
Regards
Wilson B.

Cisco Catalyst 6500 version 12.2(33)SXI13 configured as DHCP server for a VLAN responds to Windows 7 client with status code NOA

Can anyone help figure out why the Catalyst 6509 is not able to assign an IPv6 address? Thank you.
Cisco Catalyst 6500 version 12.2(33)SXI13 configured as DHCP server for a VLAN responds to Windows 7 client with status code NOADDRS-AVAIL(2). My configuration on the 6500 for the DHCPv6 server is:
ipv6 dhcp database disk0://DHCPV6-DB
ipv6 dhcp pool VLAN206IPV6
prefix-delegation pool VLAN206IPV6-POOL
dns-server 2620:B700:0:1001::53
domain-name global.bio.com
ipv6 local pool VLAN206IPV6-POOL 2620:B700:0:12C7::/65 65
interface Vlan206
description *** IPv6 Subnet ***
ip address 10.2.104.2 255.255.255.0
ipv6 address 2620:B700:0:12C7::2/64
ipv6 nd prefix 2620:B700:0:12C7::/64 14400 14400 no-autoconfig
ipv6 nd managed-config-flag
ipv6 dhcp server VLAN206IPV6
standby version 2
standby 0 ip 10.2.104.1
standby 0 preempt
standby 6 ipv6 2620:B700:0:12C7::1/64
standby 6 preempt
I'm getting a result from my debug as follows:
Apr 10 16:28:02.873 PDT: %LINK-3-UPDOWN: Interface GigabitEthernet2/2, changed state to up
Apr 10 16:28:02.873 PDT: %LINK-SP-3-UPDOWN: Interface GigabitEthernet2/2, changed state to up
Apr 10 16:28:02.877 PDT: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/2, changed state to up
Apr 10 16:28:03.861 PDT: IPv6 DHCP: Received SOLICIT from FE80::5D5E:7EBD:CDBF:2519 on Vlan206
Apr 10 16:28:03.861 PDT: IPv6 DHCP: detailed packet contents
Apr 10 16:28:03.861 PDT: src FE80::5D5E:7EBD:CDBF:2519 (Vlan206)
Apr 10 16:28:03.861 PDT: dst FF02::1:2
Apr 10 16:28:03.861 PDT: type SOLICIT(1), xid 8277025
Apr 10 16:28:03.861 PDT: option ELAPSED-TIME(8), len 2
Apr 10 16:28:03.861 PDT: elapsed-time 101
Apr 10 16:28:03.861 PDT: option CLIENTID(1), len 14
Apr 10 16:28:03.861 PDT: 00010001195FD895F01FAF10689E
Apr 10 16:28:03.861 PDT: option IA-NA(3), len 12
Apr 10 16:28:03.861 PDT: IAID 0x0FF01FAF, T1 0, T2 0
Apr 10 16:28:03.861 PDT: option UNKNOWN(39), len 32
Apr 10 16:28:03.861 PDT: option VENDOR-CLASS(16), len 14
Apr 10 16:28:03.861 PDT: option ORO(6), len 8
Apr 10 16:28:03.861 PDT: DOMAIN-LIST,DNS-SERVERS,VENDOR-OPTS,UNKNOWN
Apr 10 16:28:03.861 PDT: IPv6 DHCP: Option IA-NA(3) is not supported yet
Apr 10 16:28:03.861 PDT: IPv6 DHCP: Sending ADVERTISE to FE80::5D5E:7EBD:CDBF:2519 on Vlan206
Apr 10 16:28:03.861 PDT: IPv6 DHCP: detailed packet contents
Apr 10 16:28:03.861 PDT: src FE80::21D:E6FF:FEE4:4400
Apr 10 16:28:03.861 PDT: dst FE80::5D5E:7EBD:CDBF:2519 (Vlan206)
Apr 10 16:28:03.861 PDT: type ADVERTISE(2), xid 8277025
Apr 10 16:28:03.861 PDT: option SERVERID(2), len 10
Apr 10 16:28:03.865 PDT: 00030001001DE6E44400
Apr 10 16:28:03.865 PDT: option CLIENTID(1), len 14
Apr 10 16:28:03.865 PDT: 00010001195FD895F01FAF10689E
Apr 10 16:28:03.865 PDT: option STATUS-CODE(13), len 15
Apr 10 16:28:03.865 PDT: status code NOADDRS-AVAIL(2)
Apr 10 16:28:03.865 PDT: status message: NOADDRS-AVAIL

Hello,
maybe hitting the following bug.
Pv6 Address Assignment Support for IPv6 DHCP Server
CSCse81385
Hope this helps

Cisco catalyst 2960 booting garbage, help on restore IOS

Dear All,
This is my first time on terminal access of Cisco Catalyst 2960 (2960TC-L), normally would use the web configuration for most task.
Now the switch has an issue with the web interface and when I try to access through terminal, I was greeted with garbage upon the booting of the switch, I searched for the terminal boot process and it wasn't what I was expected for my switch. I was a bit dumbfound now of how can I recover the firmware to its default stage, now that I cannot even boot through its terminal console.
Any help is highly appreciated. Thank you for your time.

Hi,
I just verified with my colleague of whom have done quite a few bits before I took over his task.
His reply was he actually did an IOS flash before, though I'm not sure how he did it, but according to him, it was actually a success and the web interface still works for few times before it become like this.
As I tried another time to goes into root mode (or Admin mode??) for the switch, the steps as I performed below:
1. Refer to cisco-2960-putting-setting.jpg for the settings. I press Open and it does display the console Window, no issue there.
2. I hold the "mode" button on the switch and turn on the switch power, and after few seconds the screen display as such (refer to cisco-2960-putty-output2.jpg), the SYST L.E.D. did flash with following pattern: Green (blink ~15 times) then Orange-Green (repeat blink twice) then Green (stable light), for this I was expecting it to goes off after few seconds but it didn't, I wait about a minute before I let go the "mode" button.
3. After I let go the "mode" button, it goes to the screen (refer cisco-2960-putty-output3.jpg), and the SYST still blinking, possibly infinitely... with the console output screen stays like that... and whatever I entered display weird/garbage characters instead, I can't do anything on it.
Each tries display different weird characters, as the SYST still blinking infinitely.
I'm unsure if I'm giving enough details for online troubleshooting, I'll try my best to give as per instructed.
Thank you for your time.

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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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.

Unable to connect a Netapp San to a Cisco Catalyst in 10Gb

I have a Cisco Catalyst 4507R with a WS-X4606-X2-E and X2-10GB-SR to be connected to a Netapp SAN and it does not work.
With show interface transceiver detail it seems that the power sent by netapp is good but the link stay in dwon down state
Any help?

down/down is related to layer 1 issue. Make sure the SFP is correct on both ends (and same type: LR vs SR) and also make sure you are using the right fiber. You can loop back on the same catalyst both sfps with the cable to see if the link comes up.

IGMP Snooping configuration for Multicasting on Cisco Catalyst 3020

IGMP Snooping configuration for Multicasting on Cisco Catalyst 3020
Hi Guru,
Our switch model is "Cisco Catalyst Blade Switch 3020 for HP"
We are building HA (High Availability) Databases infrastructure.
Currently, there are two nodes(hosts- servers) and two above switch for HA.
Oracle said we need to turn off the IGMP Snooping in order to use the multicasting for their interconnect communication.
So my question is:
Q1> Is there any way to use Multicasting without turning off IGMP Snooping on Switch side?
Q2> If 'yes', how can we configure the switch for Multicasting ?
Oracle uses 230.0.1.0 & 224.0.0.251 IPs with 42000 range port for Multicasting communication.
Please shed some light on it

May I request if you avoid making multiple posts of the same issue? This will only confuse people (including you).

Cisco Catalyst 2960X-24PS-L - Management Issues

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