Huawei OptiX OSN 7500 Technical Manual page 60

OptiX OSN 7500
Technical Manual - System Description
Feature
MAC address table
MPLS label
Rapid spanning tree
protocol (RSTP)
Multicast (IGMP
Snooping)
RPR protection
RPR protection period
Encapsulation format
LCAS
CAR
Flow control
Weighted fairness
algorithm
Topology discovery
Service class
2.
The user service has three classes, A, B and C. Class A falls into A0 and A1. Class B
falls into B_CIR (Committed Information Rate) and B_EIR (Excess Information Rate).
Table 6-3 gives the difference of these classes.
Board
Service Class
Huawei Technologies Proprietary
EMR0
64k
2k
Support STP and RSTP
Supported
Steering, Wrapping,
Wrapping + Steering
<50ms
GFP-F, compliant with ITU-T
G.7041
LAPS, compliant with ITU-T
X.86
Supported, compliant with
ITU-T G.7042
Based on port or port + VLAN,
with the granularity as 64
kbit/s
Supported, compliant with
IEEE 802.3X and IEEE
802.3Z
Supported
Supported
A0, A1, B_EIR, B_CIR and C
6-11
6 Data Features
EGR2
64k
2k
Support STP and RSTP
Supported
Steering, Wrapping,
Wrapping + Steering
<50ms
GFP-F, compliant with
ITU-T G.7041
LAPS, compliant with ITU-T
X.86
Supported, compliant with
ITU-T G.7042
Based on port or port +
VLAN, with the granularity
as 64 kbit/s
Supported, compliant with
IEEE 802.3X and IEEE
802.3Z
Supported
Supported
A0, A1, B_EIR, B_CIR and
C