
2-6 Riverstone Networks RS 32000 Switch Router Getting Started Guide
Software Overview Introduction
• Layer-4 application ACLs (block traffic based on UDP or TCP source and destination ports for IP
or source and destination sockets for IPX)
In addition to filtering and ACL, the RS also provides login security in the form of TACACS, TACACS+, RADIUS,
and Secure Session Shells (SSH) version 1.5.
2.3.6 Quality of Service
Although the RS 32000 supplies non-blocking, wire-speed throughput, you can configure the RS to apply Quality of
Service (QoS) policies during peak periods to guarantee service to specific hosts, applications, and flows
(source-destination pairs). This is especially useful in networks where the traffic level can exceed the network
medium’s capacity.
QoS policies can be configured for the following types of traffic:
• Layer-2 prioritization (802.1p)
• Layer-3 source-destination flows
• Layer-4 source-destination flows
• Layer-4 application flows
QoS mechanisms supported on the RS 32000 include the following:
• Traffic control queuing
• Weighted random early detection
• Weighted fair queuing
• Strict priority queuing
• QoS traffic control queues
• ToS octet rewrites
• Multi-Protocol Label Switching (MPLS) and the creation of LSPs for traffic engineering
Note Traffic control queuing is based on assigning traffic to one of four queues: control,
high, medium, and low. Control traffic (routing protocols, and so on) has the
highest priority, high the second highest, and so on. The default priority for all
traffic is low.
2.3.7 Statistics
The RS 32000 can provide extensive statistical data on demand. You can access the following types of statistics:
Layer-2 RMON and MIB II Statistics – Port statistics for normal packets and for errors (packets in, packets out, CRC
errors, and so on)
Layer-3 RMON v2 Statistics – Statistics for ICMP, IP, IP-interface, IP routing, IP multicast, VLAN
Layer-4 RMON v2 Statistics – Statistics for TCP and UDP
LFAP – Light-weight File Accounting Protocol
Open APIs – Slate and FAS Lite.
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