ZyXEL Communications ES-2048 - Manual (Page 87)

ES-2000 Series Switch Support Notes
All contents copyright (c) 2006 ZyXEL Communications Corporation.
87
operating.
What are the differences between ES-2024 and ES-2024A?
ES-2024A ES-2024 Remark
Bridging
8K MAC addresses 10K MAC addresses 8K MAC uplifts system
capabiltity and boosts
performance
VLAN 4K 2K Full range VLAN support
PVID 4K 1~255 Full range VLAN support
802.3ad
Port
Aggregation
Support up to 3
groups (2 FE+ 1GbE)
maximum links up to
4 ports (GbE 2 ports)
per group.
Support up to 7
groups, each can
include 4 port
maximum
QoS
4 priority queues 2priority queues Double queues
acconmondate more
ranking options to
optimize traffic of critical
missions
DiffServ
Supported DSCP None DSCP suppoted to enable
802.1P mapping
Bandwidth
Control
ingress rate limiting
implemented packet
dropping once over
threshold value
ingress rate limited
implemented by flow
control mechanism
More precise and
self-done rate limiting
mechanism
Port security
Static MAC filtering
MAC Freeze
MAC number control
None Excellent tools to
implement security
protection which realizes
extreme security to the
edge
SSH/SSL
Supported None Encrypt the management
connection
System
Control
Single-IP can
manage 24 unites
(iStacking support)
8 units can be
managed by one IP
Single-IP can manage as
many as 24 devices to
save investment