Configuring snmp on PIX 515
I think you do have all the commands required. I would check and see if you have an access-list in on the inside interface, then you will need to add a line to allow the SNMP server to poll the PIX. Otherwise, run a debug on the PIX and see if it gives you any [...]
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| August 24, 2009 9:29 PM
PIX 515UR, SNMP, What's Up Gold
I think you do have all the commands required. I would check and see if you have an access-list in on the inside interface, then you will need to add a line to allow the SNMP server to poll the PIX. Otherwise, run a debug on the PIX and see if it gives you any [...]
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| August 24, 2009 9:29 PM
PIX 515UR, SNMP, What's Up Gold
VLan Cisco 2950
Firstly, one of the configs you have posted is for a switch <b>interface FastEthernet0/23 switchport access vlan 10 switchport mode trunk spanning-tree portfast</b> You should NEVER put portfast on a link to another switch, this command turns off spanning-tree, and you don’t want to do that on a connection to another network device, that is [...]
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| August 24, 2009 8:33 PM
Cisco 2950, VLAN
Firstly, one of the configs you have posted is for a switch <b>interface FastEthernet0/23 switchport access vlan 10 switchport mode trunk spanning-tree portfast</b> You should NEVER put portfast on a link to another switch, this command turns off spanning-tree, and you don’t want to do that on a connection to another network device, that is [...]
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| August 24, 2009 8:33 PM
Cisco 2950, VLAN
CCNA
Not at all. There are no courses necessary before studying the CCNA. It is designed to take you from a position of no networking knowledge, to knowing a great deal about how networks operate, and how to configure the basics on Cisco routers and switches. Many people find it useful to have both certifications, as [...]
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| August 23, 2009 10:08 PM
CCNA, MCSE, Networking certifications
Not at all. There are no courses necessary before studying the CCNA. It is designed to take you from a position of no networking knowledge, to knowing a great deal about how networks operate, and how to configure the basics on Cisco routers and switches. Many people find it useful to have both certifications, as [...]
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| August 23, 2009 10:08 PM
CCNA, MCSE, Networking certifications
Any instructions for upgrading IOS on a Cisco 6506E series switch?
<a href=”http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a00801347e2.shtml”>Heres how</a> First I presume you already have the new version of IOS you want to upload to the switch ? Get a copy of a TFTP server. There is a free one at Solarwinds <b>http://www.solarwinds.com/products/freetools/free_tftp_server.aspx</b> Connect the PC to a network that is connected to the switch, and find it’s IP address using [...]
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| August 23, 2009 10:05 PM
Cisco 6500, Cisco IOS, Cisco IOS upgrade
<a href=”http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a00801347e2.shtml”>Heres how</a> First I presume you already have the new version of IOS you want to upload to the switch ? Get a copy of a TFTP server. There is a free one at Solarwinds <b>http://www.solarwinds.com/products/freetools/free_tftp_server.aspx</b> Connect the PC to a network that is connected to the switch, and find it’s IP address using [...]
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| August 23, 2009 10:05 PM
Cisco 6500, Cisco IOS, Cisco IOS upgrade
Cisco 1841,SDM will not connect nor install
If the 1841 does not recognise the CRYPTO command in config mode, then you do not have a version of the IOS with the features needed to configure a VPN. If you post the software version from the ‘<b>show ver</b>’ command, then we can confirm that. Can’t advise much on SDM as I have never [...]
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| August 22, 2009 9:56 AM
Cisco, Cisco 1841, Cisco Routers, CRYPTO, Routers, Sdm, VPN
If the 1841 does not recognise the CRYPTO command in config mode, then you do not have a version of the IOS with the features needed to configure a VPN. If you post the software version from the ‘<b>show ver</b>’ command, then we can confirm that. Can’t advise much on SDM as I have never [...]
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| August 22, 2009 9:56 AM
Cisco, Cisco 1841, Cisco Routers, CRYPTO, Routers, Sdm, VPN
Which two layers of the OSI model have the same functions as the TCP/IP model Network Access Layer
Please do try to read the notes you have been given as part of the CCNA course yuo are doing, and find the answer by your own efforts. It is one of the first parts of the CCNA course covering this exact topic. Look at the notes for the Seven Layer Model and for the [...]
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| August 22, 2009 7:29 AM
Network access, Network Access Layer, OSI Model, TCP/IP
Please do try to read the notes you have been given as part of the CCNA course yuo are doing, and find the answer by your own efforts. It is one of the first parts of the CCNA course covering this exact topic. Look at the notes for the Seven Layer Model and for the [...]
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| August 22, 2009 7:29 AM
Network access, Network Access Layer, OSI Model, TCP/IP
How are the networking stacks better in Hyper-V than in ESX?
In Windows Server 2008 R2 Hyper-V we support things like VMQ and Chimney as well as Jumbo Frames. This allows us to offload networking traffic to the hardware to free up CPU resources. This gives us great performance for VMs. I don’t have any benchmarks comparing our stack and VMware’s so I will have to [...]
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| August 21, 2009 9:47 PM
Hyper-V, Hyper-V vs. VMware, Microsoft virtualization, Microsoft Virtualization Chat 7/30, Networking Stacks, VMware ESX
In Windows Server 2008 R2 Hyper-V we support things like VMQ and Chimney as well as Jumbo Frames. This allows us to offload networking traffic to the hardware to free up CPU resources. This gives us great performance for VMs. I don’t have any benchmarks comparing our stack and VMware’s so I will have to [...]
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| August 21, 2009 9:47 PM
Hyper-V, Hyper-V vs. VMware, Microsoft virtualization, Microsoft Virtualization Chat 7/30, Networking Stacks, VMware ESX
Cisco Catalyst vlan 2950
I would expect the Linksys to support 802.1Q VLAN trunk ports, the same as the Cisco, so you should only need to use one interface on each to connect the two together, and have full VLAN connectivity. Post the exact model of the Linksys and I will try to help you with the commands, if [...]
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| August 21, 2009 7:49 AM
Cisco 2950, cisco 2950 catalyst, Cisco Catalyst, VLAN
I would expect the Linksys to support 802.1Q VLAN trunk ports, the same as the Cisco, so you should only need to use one interface on each to connect the two together, and have full VLAN connectivity. Post the exact model of the Linksys and I will try to help you with the commands, if [...]
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| August 21, 2009 7:49 AM
Cisco 2950, cisco 2950 catalyst, Cisco Catalyst, VLAN
TCP/IP Error 3448
Is that the event ID? Can you give us the entire error in detail please as well as system specifics, OS etc? Thanks! There is a PTF to fix this. Here is a link. http://www-01.ibm.com/support/docview.wss?uid=nas24e380544ad20d92286256dea00420eac
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| August 20, 2009 8:56 PM
Netstat, Networking, TCP/IP
Is that the event ID? Can you give us the entire error in detail please as well as system specifics, OS etc? Thanks! There is a PTF to fix this. Here is a link. http://www-01.ibm.com/support/docview.wss?uid=nas24e380544ad20d92286256dea00420eac
View Answer
| August 20, 2009 8:56 PM
Netstat, Networking, TCP/IP
Throughput calculator for all the SAN subsystem?
What are the drawbacks in your mind of using iometer or iozone?
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| August 20, 2009 12:21 PM
Bandwidth, Fibre channel, Network storage, NFS, SAN, SAN throughput, SAN throughput sizing, Shared Network Storage, Storage Area Network, Throughput
What are the drawbacks in your mind of using iometer or iozone?
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| August 20, 2009 12:21 PM
Bandwidth, Fibre channel, Network storage, NFS, SAN, SAN throughput, SAN throughput sizing, Shared Network Storage, Storage Area Network, Throughput
Sending files to AS/400 from Unix
Connect Direct eh? I had to do an interface with this onto i5. It wasn’t fun, and it wasn’t pretty. All I can remember is that we needed folders for the files to be sent/received, and the geeks in commsland had to set up some connectivity. We eventually found a really really helpful and knowedgeable [...]
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| August 20, 2009 5:27 AM
AS/400, Connect:Direct, Unix
Connect Direct eh? I had to do an interface with this onto i5. It wasn’t fun, and it wasn’t pretty. All I can remember is that we needed folders for the files to be sent/received, and the geeks in commsland had to set up some connectivity. We eventually found a really really helpful and knowedgeable [...]
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| August 20, 2009 5:27 AM
AS/400, Connect:Direct, Unix
System i Console Solution for 8203-E4A (LAN or Operations Console)
Hi Gary, We used both methods on a 515 (LAN) and 270 (cable and LAN) and it works fine. For lan console we use a separated lan adapter (which can be used if primary fails) because when Console is active it will not allow TCP/IP to work on the same adapter so you can’t have [...]
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| August 19, 2009 9:51 PM
AS/400 administration, AS/400 Configuration, LAN
Hi Gary, We used both methods on a 515 (LAN) and 270 (cable and LAN) and it works fine. For lan console we use a separated lan adapter (which can be used if primary fails) because when Console is active it will not allow TCP/IP to work on the same adapter so you can’t have [...]
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| August 19, 2009 9:51 PM
AS/400 administration, AS/400 Configuration, LAN
Problem with Cisco router
What type of media? Possibly a clocking issue?
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| August 19, 2009 3:47 PM
Cisco 3660, Cisco IOS, Router Troubleshooting
What type of media? Possibly a clocking issue?
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| August 19, 2009 3:47 PM
Cisco 3660, Cisco IOS, Router Troubleshooting
network slow
Check for high resource utilization on the clients and the server. Scan all systems for malicious software. as anything recently changed on the network? Is a data backup happening while the clients are trying to use server resources? Are the clients local to the server or is the server on a remote network? Check for [...]
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| August 19, 2009 11:19 AM
Network performance, Windows Server 2003, Windows Server Performance
Check for high resource utilization on the clients and the server. Scan all systems for malicious software. as anything recently changed on the network? Is a data backup happening while the clients are trying to use server resources? Are the clients local to the server or is the server on a remote network? Check for [...]
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| August 19, 2009 11:19 AM
Network performance, Windows Server 2003, Windows Server Performance
configuring Cisco 3745 to send snmp traps
Try the following for SNMP snmp-server enable traps snmp-server host x.x.x.x public where public is the community string which is the shared password between the router and the snmp host (nms) you may also need to add the version command before the community string if the snmp host uses a version other than version 1 [...]
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| August 18, 2009 11:50 PM
Cisco 3745, SNMP
Try the following for SNMP snmp-server enable traps snmp-server host x.x.x.x public where public is the community string which is the shared password between the router and the snmp host (nms) you may also need to add the version command before the community string if the snmp host uses a version other than version 1 [...]
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| August 18, 2009 11:50 PM
Cisco 3745, SNMP
FCoE investment: worth the upgrade or holding off?
We use traditional FC as it has lower latency, and quicker timeouts which result is quicker retries. If we needed to send FC data from one CoLo to another we’d switch to FCoE, within the CoLo we’ll keep to the native FC.
View Answer
| August 18, 2009 11:29 PM
FCoE, Fibre channel, Fibre Channel over Ethernet, Storage hardware
We use traditional FC as it has lower latency, and quicker timeouts which result is quicker retries. If we needed to send FC data from one CoLo to another we’d switch to FCoE, within the CoLo we’ll keep to the native FC.
View Answer
| August 18, 2009 11:29 PM
FCoE, Fibre channel, Fibre Channel over Ethernet, Storage hardware
Interoperability of Nexus 5020
Yes both those combination are supported. At least by EMC, with specific versions of the code. Let me know what are you connecting to on the storage end.
View Answer
| August 18, 2009 6:43 PM
Brocade Switches, FCoE, Fibre channel switches, Nexus, Nexus 5010, Nexus 5020
Yes both those combination are supported. At least by EMC, with specific versions of the code. Let me know what are you connecting to on the storage end.
View Answer
| August 18, 2009 6:43 PM
Brocade Switches, FCoE, Fibre channel switches, Nexus, Nexus 5010, Nexus 5020
What certification advice do you have for aspiring network engineers?
The certifications are an indication of your capabilities. If you start with the CCNA, and see how you get on with it. It is a useful basis to then build your knowledge and see if networking is really what you want to do for a living. Employers will see this as a useful first step, [...]
View Answer
| August 18, 2009 4:32 PM
CCNA, CCNP, Network engineering, Networking certifications
The certifications are an indication of your capabilities. If you start with the CCNA, and see how you get on with it. It is a useful basis to then build your knowledge and see if networking is really what you want to do for a living. Employers will see this as a useful first step, [...]
View Answer
| August 18, 2009 4:32 PM
CCNA, CCNP, Network engineering, Networking certifications
How much money will I make if I get RHCE, CCNA and CCNP certification?
Of course salary is dependent on experience and geographical location. No one can answer this specific question. There are a lot of salary surveys out there and that is where you should look if you are interested in gathering this type of information. Start with a <a href=”http://lmgtfy.com/?q=%22RHCE%22+%22CCNA%22+%22CCNP%22+salary+survey”>Google search</a> on this topic. Good luck!
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| August 18, 2009 2:14 PM
Cisco Certified Network Associate, Cisco Certified Network Professional, Networking, Networking certifications, Red Hat Certified Engineer, RHCE
Of course salary is dependent on experience and geographical location. No one can answer this specific question. There are a lot of salary surveys out there and that is where you should look if you are interested in gathering this type of information. Start with a <a href=”http://lmgtfy.com/?q=%22RHCE%22+%22CCNA%22+%22CCNP%22+salary+survey”>Google search</a> on this topic. Good luck!
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| August 18, 2009 2:14 PM
Cisco Certified Network Associate, Cisco Certified Network Professional, Networking, Networking certifications, Red Hat Certified Engineer, RHCE
client/server architecture
Yes, it will impose a major concern. Bandwidth/capacity and throughput. The LAN users will see excellent performance but it is possible and very likely that users across a WAN will experience poor performance due to either the capacity of their links or the throughput which may be due to high latency if the clients are [...]
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| August 18, 2009 2:10 PM
Client/server architecture, LAN, Network architecture, WAN
Yes, it will impose a major concern. Bandwidth/capacity and throughput. The LAN users will see excellent performance but it is possible and very likely that users across a WAN will experience poor performance due to either the capacity of their links or the throughput which may be due to high latency if the clients are [...]
View Answer
| August 18, 2009 2:10 PM
Client/server architecture, LAN, Network architecture, WAN
