Comparison of Maxwell Family of Network Emulators. Kings Village Center #66190 Scotts Valley, CA iwl.com

Transcription

1 Comparison of Maxwell Family of Network Emulators Kings Village Center #66190 Scotts Valley, CA

2 Point-and-Click Scenarios Cross-Atlantic T1 ATM Link X X Low earth orbit satellite X X Geosynchronous satellite X X Streaming media over satellite X X Cellular radio handoff X X VOIP: to remote office via WAN X X VOIP: multi-way conference over WiFi X X Connection impairments X X Failover to backup servers X X Protocol Tests X X ITU G.1050 Tests X X X X X TCP protocol impairments (test suite) X X X X X UDP protocol impairments (test suite) X X X X X SIP protocol impairments (test suite) X X X X X IPv6 protocol impairments (test suite) X X X X X IPv4 protocol impairments (test suite) X X X X X SSL / TLS protocol impairments (test suite) X X X X X ICMP protocol impairments X X X X X 2

3 Interfaces: * 10/100 Mbits/sec 10/100 Mbits/sec and higher X 10/100/1000 Mbits/sec X X Optional 10 Gbits/sec for two ports X X X X Hardware Enclosure Tablet sized X X X X Lunchbox sized X X Rackmount otion Impairments (Standard) Packet Delay/Latency: Vary delay over time: (1) (1) Manually (1) (1) Via a Simple pulse model X X Add jitter to the delay Add jitter to the delay with packet reordering 3

4 Packet Jitter Jitter Distribution: Normal / Gaussian / Bell curve Pareto X Pareto normal X Uniform (equal) X X Piecewise distribution function / user defined X X X X X Packet Duplication: Specify duplication probability Vary duplication probability over time: (1) (1) Manually (1) (1) Enable burst X X Specify burst probability X X Specify burst window duration X X 4

5 Vary burst probability over time: X X Manually X X Enable burst skew X X Packet Drop / Loss: Specify drop probability Vary drop probability over time: (1) (1) Manually (1) (1) Enable bursts (2) (2) Specify burst probability X X Specify burst window duration X X Vary burst probability over time: X X Manually X X Enable burst skew X X 5

6 Impairments (Advanced) Rate Limitation: Specify target rate X X Specify queue length X X Specify overhead bits X X Specify minimum packet size X X Specify maximum packet size X X Vary any of the above over time: (1) (1) Manually (1) (1) Support bit clocking rate control Support token bucket rate control X X X Mark for drop or random early detection X X X Specify transition action on queued packets X X X Flush queue X X X 6

7 Packet Corruption: Specify corruption probability Limit corruption to Ethernet payload X X Specify burst probability X X Vary burst probability above over time: (1) (1) Manually (1) (1) Smart Impairments of specific protocol fields Packet flow: unidirectional and bidirectional Emulated Links/multiple flows: X X X X X Five in each direction; ten total 64 in each direction; 128 total X X X 7

8 Classify packets based on: IPv4 header fields IPv6 header fields X X MAC source or destination address Ethernet type or length field IEEE 802 header fields (includes VLAN tags) X X Data within the packet Limited Limited Classify packets based on fields in protocols: Low-level protocols: arp dhcp icmp mpls X X X spanning-tree X X IP layer: IPv4 packets of varying lengths IPv6 fragment X X X IPv6 fragment_last X X IPv6 flow range X X 8

9 TCP / UDP: Applications Any TCP packet TCP port numbers Any UDP packet UDP port numbers http DNS SIP VoIP VoIP with QoS bits in various configs Apply different impairments on each emulated link Maximum packet delay 10 sec 10 sec > one week > 60 sec Contact us Contact us Timer resolution 1 ms 1 ms 1 ms 1 ms Contact us Contact us Impairment engine: Netem X X X X IWL impairment server real time, multi threaded process X X X X X Kernel-driven impairment engine (TM) X X X Transparency / Configuration Layer 2 transparent bridge 9

10 Graphical User Interface Web UI X WxPython UI X X X X X Command Line Interface (1) (1) Script control with Python Script control with Tcl X X X X X Script control with Java X X??? Script control with Perl X X X X X Script control with RESTful interface X X X Script control with JSON interface X X X Script control with YAML interface X X X Remote operation via VNC, SSH, telnet X X N/A N/A N/A Create Your Own Impairments: User plugins X X X X X Program your own impairment in C, C++, or Python Customize plugin for environment, e.g. legacy network like BACnet X X X X X X X X X X 10

11 Manipulate contents of headers and payloads: Randomly corrupt a packet Intelligently corrupt a packet X X Create a packet and selectively insert into the flow X X Dynamically create and change distinct flows of packets X X Inspect packet headers to select packets for modification X X Inspect packet data to select packets for modification X X Rewrite packet headers X X Rewrite packet data X X Select and modify packets based on: The content of that packet X X The content of predecessor packets X X The content of packets in other flows X X The mathematical model of packet flows X X The position in the protocol handshake X X *Other hardware configurations available. Contact info@ (1) Controlled by external software that can vary operating parameters roughly ten times per second. (2) Based on Netem burst model; requires consultation with IWL Engineer. Copyright InterWorking Labs, Inc. ALL RIGHTS RESERVED. KMAX, Maxwell, SilverCreek, and InterWorking Labs are trademarks of InterWorking Labs, Inc. All other names are trademarks or registered trademarks of their respective owners. 02/