CrossNet Spotlight
Last updated on 25-May-2009
Protocols
Key Points:
  • Standards Based Protocols
  • Linux and Windows Server OS Support
  • Windows Desktop and Terminal Services Support

CrossNet deploy a vast array of Network Protocols with a high degree of expertise to give us our well deserved reputation for enterprise grade network management.

We leverage scalable protocol analysis and corporate level monitoring solutions to provide our Network Operations Centre (NOC) with a detailed, broad spectrum field of view. Our real time issue response capability and intense monitoring for alerts to network degradation is derived from our in-depth knowledge of the network protocols that drive the systems we monitor.

Our Preferred Network Protocols

L2TP – In Networking L2TP is primarily a tunnelling protocol utilised to support VPNs (Virtual Private Networks), It does not in itself however provide any encryption, it is dependant on a separate encryption protocol it passes through the tunnel it provides.

PPP- Point to Point protocol or as it more commonly known PPP, is a widely deployed data link protocol utilised to establish connections between two network nodes. It provides connection authentication functionality with an additional data encryption and compression facility.

PPTP- Point to Point Tunnelling Protocol is another protocol based method for deploying VPNs (Virtual Private Networks). This protocol however has no inherent encryption capability and relies solely on the tunnelling to ensure privacy.

ARP- Address Resolution Protocol (ARP) is the operative protocol through which location of a host’s hardware (link layer) when nothing other than its IP or another network layer address is known.

TCP-IP – Is the Internet Protocol Suite used standard for the internet and other networks. It has a name derived from both the TCP (Transmission Control Protocol) and the IP (Internet Protocol) which were the original protocols defined within this standard.

ICMP- Internet Control Messaging Protocol is a chief component in the Internet Protocol Suite. It is mainly utilised by the operating systems on networked computers to relay error messages to alert users to unavailable services or that a router is not available
.
RIP- Routing information Protocol is used for routing dynamically within LANs (Local Area Networks) and WANs (Wide Area Networks). It makes use of a distance vectoring algorithm and is grouped within the interior gateway protocol set.

IPSec- Is a group of protocols used for ensuring security with Internet Protocol (IP) transmissions by a method of encrypting and authenticating every single data/IP packet within a data stream.

UDP- One of the essential components of the Internet Protocol suite is the User Datagram Protocol or UDP. The framework from this protocol allows computer applications to initiate message exchanges with other destinations on the IP NETWORK without the need to set up prior channels for doing so.
.
RDP- Or Remote Desktop Protocol is a protocol that operates over multiple channels which allow a user to connect to a designated networked computer.

NFS- Or Network File System enables a user to gain access to files present on another computer as though it were a local machine.

SMB- Or Server Message Block is deployed to provide an ability to have shared access to all printers, faxes, files, and serial ports within a network.

SSH- or Secure Shell is a commonly used network protocol that allows for a secure data channel between two devices that are networked.

DNS- Or Domain Name System is a resource naming system that is hierarchical in structure for any device on the internet.

DHCP- Or Dynamic Host Configuration Protocol is a common network application protocol used by hardware devices to procure information to operate within an IP environment. Devices that use this protocol often need no manual installation to a network to function within the network.

FTP- Or File Transfer Protocol is a heavily utilised network protocol that makes provision for the transfer of files from one networked device to another across the network.

HTTP-Or Hypertext Transfer Protocol is a protocol that operates at the application level to locate and retrieve linked resources.

POP/IMAP- Or Post Office Protocol is a standard protocol for email clients operating at an application layer , to retrieve email messages from a mail server via TCP-IP network.

NTP- Or Network Time Protocol is a protocol used for the synchronisation of clocks across a network that has dynamic latency.

RSYNC- Is a Unix based software application which works to synchronise data bases, files and directories from one device to another with a minimal data transfer overhead.

RTSP- Or Real Time Streaming Protocol is the main protocol utilised by streaming media. It allows a user to exert control over a remote streaming media server similar to any other media player but with the added ability to grant access and control remotely.

SIP- Or Session Initiation Protocol is a signalling protocol commonly used for initiating and terminating voice and video transmissions over the internet.

SNMP- Or Simple Network Management Protocol Is primarily used in network monitoring and management systems to provide an individual with information about remote network attached devices.

SMTP- Simple Mail Transfer Protocol or SMTP is the globally utilised internet standard for email projection across the IP network.

TFTP- Or Trivial File Transfer Protocol is a very simple protocol for the transfer of files very similar in nature to a simplified version of FTP.

IAX- Or Inter-Asterisk eXchange is a native protocol that works in a native fashion with Asterisk open source PBX systems to enable them to communicate with other Asterisk servers and the greater telecommunications Networks.