Features 
Requirements

In today’s IP networks, everything is best-effort delivery and all applications have equal value - from Web Access to Email Access to Enterprise Resource Planning (ERP) to Database management & Backups. As companies move towards converged networks and add new applications like Voice over IP (VoIP) and IP based videoconferencing, the problem of applications competing for resources on the network only intensifies. The solution is to implement Ramshyam’s ATMSS – a Linux based Advanced Traffic Monitoring & Shaping System. ATMSS delivers real service guarantees for all of the applications on the network, in particular the business-critical applications that affect the bottom line.

ATMSS comprises of three basic components:

I. NetReport:-

Traffic measurement, monitoring, Network optimization, resource planning & network security violations check is achieved with the use of following reports:

Data Sent & Received: The total traffic (volume and packets) generated or received by the host are classified according to network protocol (IP, IPX, AppleTalk, etc.) and IP protocol (FTP, HTTP, NFS, etc.). 
Used Bandwidth: Actual average and peak bandwidth usage. 
IP Multicast: Total amount of multicast traffic generated or received by the host. 
TCP Sessions: History Currently active TCP sessions established/accepted by the host and associated traffic statistics. UDP Traffic Total amount of UDP traffic sorted by port. 
Used Services: For each protocol (e.g. HTTP), a list of the last 5 clients that interacted with the host using the protocol. 
Traffic Distribution: Local traffic, local to remote traffic, remote to local traffic (a host is local if it belongs to either the specified network card subnet or to the subnet(s) specified in the initialization).
IP Traffic Distribution: UDP vs. TCP traffic, relative distribution of the IP protocols according to the host name. 
Traffic Distribution: local (subnet) traffic, local vs. remote (outside specified/local subnet), remote vs. local. 
Packets Distribution: Total number of packets sorted by packet size, unicast vs. broadcast vs. multicast and IP vs. non-IP traffic.
Protocol Utilization and Distribution of the observed traffic : according to both protocol and source/destination (local vs. remote). Local Subnet Traffic Matrix Monitored traffic between each pair of hosts in the subnet. 
Network Flows Traffic : statistics for user-defined flows (traffic of particular interest to the user)

II Bandwidth Management:-

Clubbing of various bandwidth providers: into a single gateway, to ensure highest uptime and optimum utilization of available bandwidth.
Traffic Type: Outgoing/Incoming-Traffic is managed according to traffic type: Telnet, FTP, HTTP, etc.
IP Address: Network Access Rules can be configured to allocate bandwidth based on IP addresses.
Full Control: The network administrator has full control of network traffic and can prevent traffic congestion on the network.
Application Management: Prevent a small number of applications and users from consuming all available bandwidth.

III. NetDetect:-

Detect and alert: based on pattern matching for threats including buffer overflows, stealth port scans, CGI attacks, SMB probes and NetBIOS queries, NMAP and other port scanners, well-known backdoors and system vulnerabilities, DoS clients, and many more.
Use syslog, SMB "Win Popup" messages: or even files to alert an administrator.
Develop new rules quickly: once the pattern (attack signature) is known for the vulnerability; 
Record packets: in their human-readable form from the offending IP address in a hierarchical directory structure. 
Used as a "passive trap": to record the presence of traffic that should not be found on a network, such as NFS or Napster connections; 
Used on a dedicated server: to monitor a corporate web site.

Features :

Allocate bounded bandwidth for high priority business critical applications like ERP, Email etc. Restrict or control on bandwidth for non-official applications like music, chat, etc. Generate reports on IP based Bandwidth utilization. Design a policy for bandwidth distribution on IP or Application level. HOT Pooling: pooling of multiple bandwidth sources (WAN , Leased Lines, DSL, etc) into a single consolidated pipe. Graphical User Interface for management (GUI) Multi-port Bandwidth Management Unlimited Sessions or Policies (limited by CPU power only) Integrated System Monitor (analyze network activity) Manage Traffic by IP, MAC or Network Address, or Protocols. Interface (port) Limits Limit traffic in, out separately or limit total bandwidth used. Separate "rule sets" for Firewall, Bandwidth Management and Prioritization. Bypass Priority for Local Data Streams Integrated Source and Policy Routing (Use as transparent proxy for caching) Statistics gathering and reporting for any definable traffic type (IP, MAC, VLAN, data type) Statistics-only mode ("sniffs" your LAN and gathers stats without being inline) Export Statistics via SNMP for any data type Graphing of any definable address, network or traffic type with Daily, Weekly and Monthly Usage Reports Graphing of external Routers and Devices with integrated SNMP Client. TCP Rate Shaping Packet Size Optimization (set on a per class basis) .... and many more.

Requirements

The minimum recommended hardware requirements are as follows... Pentium III Class PC with 256MB RAM, CD ROM. 3 10/100 Ethernet Cards with fixed Server IP. 9 GB Hard Disk (preferably SCSI).