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Hey everyone. My employer has asked me to seek some training on VoIP, SIP, and MGCP, as I prepare to take on new roles and responsibilities. I'm not up to speed on VoIP, SIP, or MGCP, and figure I better get a good understanding before getting product specific. The products I'll be working...

Hi everyone. I have a question to about VoIP. I have two sites, one in Las Vegas and one in Columbus. Las Vegas has a Nortel Option 11c and Columbus has a Nortel MICS key system. I would like to add an ITG Line Side card to the Option 11c and a Norstar VoIP Gateway to the MICS. Currently there...

Hi there! I'm wondering if anyone is aware of any training DVDs, CDs, that cover intermediate to advanced topics of Network Security, or even networking in general? I find that I learn better when watching an instructional video and apply that to my real world experience rather than reading a...

I nailed it. Thanks to everyone for their help. Without the collective input I would not have resolved the issue. Thanks to the Sniffer ART, it helped escalate the issue to the AS400 and Stratus administrators and we found the applications that were causing high CPU and DISK usage and...

I'm still doing a capture between my AS400 and Stratus and in the Capture Panel (Detail View) I'm seeing (roughly): #seen 15,000 #dropped 0 #accepted 85,000 #rejected 64,000 I have the AS400 and Stratus both plugged into my Foundry switch. I am mirroring the Stratus port and have a filter...

I am replacing some old Bay ARN routers with Cisco and will be adding an additional WAN circuit to provide redundancy. Here is the scenario: I want to provide redundancy from one WAN site to another. Location 1 will have a 2620 router with two WIC1-DSU cards and Location 2 will have a 2620...

I'm still having a problem with transferring data between as AS400 and a Stratus VOS, both on 100TX full duplex connected via a Foundry Network Big Iron 4000. I have now captured packets using Microsoft Netmon to compare to my Sniffer capture. One thing I noticed is that the AS400 always has a...

I think Sniffer is giving me a false expert flag, but what do you guys think? I have a desktop host with the IP address 10.11.100.50/23 and a server on 10.11.2.5/23. Two different IP networks, of course, but both devices are plugged into a Foundry Big Iron and 10.11.100.50 is VLAN 100, and...

I am monitoring traffic to/from our AS400 server and there is a huge amount of TCP retransmits. The AS400 is plugged into a Foundry switch and I've hard-fixed the port for 100-full and the NIC is 100-full. I've even tried them at 100-half, but the same results occur. The majority of traffic to...

Sprint installed an Option 11c at my work and I am responsible for the phone system. I am using Optivity to manage the system and Call Pilot via the web browser for voice mail. We purchased a MICB for conference bridges, but Sprint did not load any BUI software. The book refers to the BUI...

I'm a Sr. Network Engineer for an enterprise company in the Pharmaceutical business. As a "Network Engineer" my counterparts and I handle everything from routing, switching (Layer 3), VPN, Firewall, basically all the hardware and appliance devices. Our various "Systems...

Does the LM2000 come with cables? Sr. Network Engineer ArcLight Systems, LLC http://www.markholloway.com

I want to price-compare the cost of buying a Xyratex Gigabit interface from a Xyratex reseller versus direct from NAI. However, unlike Adaptec interfaces, I cannot find Xyratex anywhere. Only Xyratex storage solutions. Any ideas? Sr. Network Engineer ArcLight Systems, LLC...

Our company is using Microsoft OLAP and Analysis services to deliver a 'product' over the web to our customers. Currently, there are four web servers in our DMZ, load balanced by a Foundry Server Iron, and these web machines communicate with two Proclarity servers and several OLAP servers in...

I was digging through the old messages here and there were some messages discussing Laura Chappell's POD book series. These messages were from 2000, but I went the site anyway and found these books. Any care to comment? 1) Onsite! Case Studies 2) Packet Filtering: Capture the Cool Packets...

Since I use Sniffer on my laptop I would like to think there is a PCMCIA card that support Gigabit, but I do not think one exists. Currently, when I monitor gigabit ports, I use a Fluke Optiview equipped with 1000SX and use port monitoring/mirroring. I then bring the capture file from the...

I know Netmon is part of SMS, but I wish there were a seperate forum for general discussion! Anyone here using it? Sr. Network Engineer ArcLight Systems, LLC http://www.markholloway.com

I'm reading Network Analysis & Toublshooting by J. Scott Haughdahl. Great book so far! It talks about switched environments and how switches will discard CRC errors, so you network analysis tool may not detect the error packets. It then goes on to talk about special drivers for certain...

I understand that Sniffer is designed to capture errors when using a supported NIC. When using an application such as Ethereal while using an ethernet TAP and/or port mirroring, won't I get the same results as long as the NIC support promisuous mode? Regards, Mark Sr. Network Engineer...

I work in a Foundry/Cisco LAN/WAN environment and want to start sniffing data to look at our OLAP environment. One of the Sniffer reps gave me a 30-day demo CD, but to really maximize use of the software I feel I should use the right network card...? I know Sniffer will work (though not...