Hirschmann RS20 User Manual

Network Load Control
146
8.4 QoS/Priority
Basic Configuration
Release 6.0 07/2010
X Assured Forwarding (AF): Provides a differentiated schema for
handling different data traffic (RFC2597).
X Default Forwarding/Best Effort: No particular prioritizing.
The PHB class selector assigns the 7 possible IP precedence values from
the old ToS field to specific DSCP values, thus ensuring the downwards
compatibility.
ToS Meaning Precedence Value Assigned DSCP
Network Control 111 CS7 (111000)
Internetwork Control 110 CS6 (110000)
Critical 101 CS5 (101000)
Flash Override 100 CS4 (100000)
Flash 011 CS3 (011000)
Immediate 010 CS2 (010000)
Priority 001 CS1 (001000)
Routine 000 CS0 (000000)
Table 14: Assigning the IP precedence values to the DSCP value

Hirschmann RS20 Specifications

General

Mounting	DIN Rail
Operating Temperature	-40°C to +70°C
Protection Class	IP30
Switching Technology	Store-and-Forward
Product Type	Industrial Ethernet Switch
Port Details	10/100 Mbps Ethernet ports
Switching Capacity	3.2 Gbps
MAC Address Table	8k
Management	Web, SNMP
Redundancy	MRP
Ports	8 or 16