What is the difference between TCP (Transmission Control Protocol) and OSI (Open Systems Interconnection)?
I need to know about packet sniffer with a clear demo and how the packets are transmitted in TCP and UDP.
Hello All, i trying to figure out TCP Statistics for IPv4 especially Failed Connection Attempts . I would like to understand what value would indicate high as threshold?. Also i would like to know if appearing of errors of such kind indicate issue at remote host or local, and what could cause...
How do I get my TCP listening port in an enterprise network using Windows Server 2003
I have a DHCP DNS Wins Certificate server Kasper antivirus exchnage and oracle 10g configured in my Lan, i have configured 802.1x machine authentication and vlan assignment via IC 4000 and security policies are applied via ISG 2000 juniper Firewall. we have seen a lot of TCP FIn Tcp port no 1116...
Hi folks, does anyone know where I can find a full description of what each of the TCP servers does? We recently had a problem and I was unable to find out which servers should/shouldn't be running. Many thanks
how do u configure uer network to forward tcp and udp ports 6346 to ur local network
I am trying to work with database mirroring on SQL Server 2005, and I keep receiving the error message, “One or more of the server network addresses lacks a fully qualified domain name (FQDN). Specify the FQDN for each server, and click Start Mirroring again.” I know that the syntax for a...
What costs would be incurred to switch the Hybrid TCP/IP-OSI Architecture a pure OSI architecture? Could it be done?
We have an application that has our iSeries(AS/400) connect to a remote IP address and port. If we have to end the application and restart it (IPL, error, end/start subsystem) the iSeries keeps the connection open. AFter the application is restarted, the TCP connections show two connections to the...
We have several entries in our log. What is this message. Job 162968/QTCP/QTFTP00076 started on 06/07/08 at 15:00:02 in subsystem QSYSWRK in QSYS.
Why does the size of the receive window cycle up and down and eventually fall to zero?
I am using UTL_TCP package of PLSQL. I am able to connect to the POP server but I am unable to retrieve any email content. Using the UTL_TCP.available() method, I am getting the returned number of bytes as Zero inspite of their being an email. I tested the telnet commands againt the POP server &...
We currently have two iSeries connected via TCP in our network. One of the iSeries belongs to a division we no longer own and we are investigating removing them from our network. They will continue to perform services for us and are located close by. We currently have a number of DDM files...
Does the Delayed ACK feature make useless the TCP Window Size? First of all I performed several FTP downloads, with Wireshark tool capturing what's going on during the FTP session. I observed that for every 2nd DL FTP-DATA received from the FTP server, my WindowsXP client sent a TCP ACK....
I have an xp pro machine I have been unable to restore the tcp/ip to the adapters. I havereplace the network adapter and even added a wireless to the machine,but I can't get them to pick up anip address. When I run ipconfig it gives me a message to contact microsoft, I have been through the...
I have a 10/100 Mbps ethernet switch which is claimed to not function properly. So is et up a LAN using the switch, issgned IP address to 2 computer, connected them to the swtich and started pinging one computer from the other. So, now , after pinging PC1 from PC2, all the ports on the switch...
A few years ago, a consultant did a migration from one WIN2k server to another. Ever since then the server will not hold static IP address or it looks like that. Even if you login as administrator. Anyone know how to fix this?
We have a problem where some users will complain of slow application response time (on the LAN) from our ERP server, but others will be fine. After many hours of troublshooting I've discovered the following: - Packet Sniff's of affected users shows TCP Retransmissions because the Checksum is...


