Tc rules, Traffic control configuration, Tc interfaces (tcdevices) – RuggedCom RuggedRouter RX1100 User Manual
Page 138: Tc interfaces
15. Traffic Control
Revision 1.14.3
138
RX1000/RX1100™
15.1.1.3. TC Rules
Mark
Source
Destination Protocol
Source Port Dest Port
Test
Length
TOS
2
Any
Any
ICMP
Any
Any
Any
Any
Any
RESTORE
Any
Any
Any
Any
Any
0
Any
Any
CONTINUE
Any
Any
Any
Any
Any
!0
Any
Any
1
Any
Any
UDP
20000
Any
Any
Any
Any
3
Any
Any
TCP
Any
80
Any
Any
Any
4
Any
Any
Any
Any
Any
0
Any
Any
SAVE
Any
Any
Any
Any
Any
!0
Any
Any
The rules first check non connection-based protocol rules (ICMP in this case) in order to assign a
mark. For any packet that is still not marked, we attempt to restore a saved mark for the connection.
If at this point the packet has a mark set, we stop checking rules (CONTINUE) since it is either ICMP
or a packet from an existing connection which we have already assigned a mark. If still no mark is
assigned, it must be a new connection so we process the packet through all the remaining rules to
determine the mark it should receive. At the end we save the new mark to the connection so that
any further packets for the connection do not have to go through all the rules again, in order to save
processing resources. We mark all packets with no other matching rule to 4 since that represents
the default class (as defined in TC Classes). This allows explicit traffic control of even unspecified
network connections.
15.2. Traffic Control Configuration
Note
Traffic Control is mutually exclusive of Traffic Prioritization. Do not enable both of these features
at once.
15.2.1. TC Interfaces (tcdevices)
Figure 15.1. TC Interfaces
This Menu allows you to add, edit or remove traffic classification interfaces, and to assign the
maximum inbound and outbound bandwidths that the interface can handle. Add a new traffic
classification interface by selecting the Add a new traffic classification interface link or by clicking
on the add-above or add-below images in the Add column.