Configuring Access Control Lists; Configuring Quality Of Service (Qos) - Patton electronics SmartNode Series Software Configuration Manual

SmartWare Software Configuration Guide
RIP uses a single routing metric (hop count) to measure the distance between the source and a destination net-
work. Each hop in a path from source to destination is assigned a hop-count value, which is typically 1. When
a router receives a routing update that contains a new or changed destination-network entry, the router adds
one to the metric value indicated in the update and enters the network in the routing table. The IP address of
the sender is used as the next hop.
RIP prevents routing loops from continuing indefinitely by implementing a limit on the number of hops
allowed in a path from the source to a destination. The maximum number of hops in a path is 15. If a router
receives a routing update that contains a new or changed entry, and if increasing the metric value by one causes
the metric to be infinity (i.e. 16), the network destination is considered unreachable.
For information and examples on how to configure Routing Information Protocol (RIP) refer to chapter 17,
"RIP configuration" on page 193.
Configuring access control lists
Packet filtering helps to control packet movement through the network. Such control can help to limit net-
work traffic and to restrict network use by certain users or devices. To permit or deny packets from crossing
specified interfaces, SmartWare provides access control lists.
An access control list is a sequential collection of permit and deny conditions that apply to packets on a certain
interface. Access control lists can be configured for all routed network protocols (IP, ICMP, TCP, UDP, and
SCTP) to filter the packets of those protocols as the packets pass through a SmartNode. SmartWare tests pack-
ets against the conditions in an access list one by one. The first match determines whether SmartWare accepts
or rejects the packet. Because SmartWare stops testing conditions after the first match, the order of the condi-
tions is critical. If no conditions match, the software rejects the address.
For information and examples on how configure access control lists, refer to chapter 18,
configuration" on page 203.
Configuring quality of service (QoS)
In SmartWare, the link scheduler enables the definition of QoS profiles for network traffic on a certain inter-
face, as shown in figure 25
selected network traffic over various underlying technologies including Frame Relay, Ethernet and 802.x type
networks, and IP-routed networks. In particular, QoS features provide improved and more predictable net-
work service by providing the following services:
• Supporting dedicated bandwidth
• Improving loss characteristics
• Avoiding and managing network congestion
• Shaping network traffic
• Setting traffic priorities across the network
SmartWare QoS features described in chapter 14,
diverse and common needs.

Configuring access control lists

on page 119. QoS refers to the ability of a network to provide improved service to
"Link scheduler configuration"
10 • IP context overview
"Access control list
on page 151 address these
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