Huawei OptiX OSN 7500 - Page 60

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