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Chapter 22 Product Specifications
GS-1524/GS-1548 User’s Guide
144
Table 70 General Product Specifications
Interface GS-1524: 20 1000BASE-T RJ-45 Gigabit Ethernet ports
GS-1548: 44 1000BASE-T RJ-45 Gigabit Ethernet ports
4 Dual-personality interfaces, each consisting of one 1000BASE-T RJ-45
Gigabit Ethernet port and one Mini-GBIC (Small Form-Factor Pluggable (SFP)
slot.
Auto-negotiation
Auto-MDIX
Compliant with IEEE 802.3ad/u/x
Back pressure flow control for half duplex
Flow control for full duplex (IEEE 802.3x)
Layer 2
Features
Bridging 8K MAC addresses
Static MAC address forwarding by destination - 8 static entries
Broadcast storm control
Static MAC address forwarding
Switching Switching fabric:
GS-1524: 48Gbps, non-blocking
GS-1548: 96Gbps, non-blocking
Max. Frame size: 1522 bytes
Forwarding frame: IEEE 802.3, IEEE 802.1Q, Ethernet II, PPPoE
Prevent the forwarding of corrupted packets
QoS IEEE 802.1p
4 priority queues per port
Port-based egress traffic shaping
DSCP to IEEE 802.1p mapping
ToS to IEEE 802.1p mapping
Source IP-based prioritization of traffic
VLAN Tag-based (IEEE 802.1Q) VLAN
Number of VLAN: 4K, 256 static maximum
Port
Aggregation
Supports static port trunking
Six groups (up to 8 ports each)
Port mirroring All ports support port mirroring
Rate control Supports rate limiting from 64 Kbps to 1 Gbps on a port by port basis for
incoming traffic
Supports egress traffic shaping via the “bucket - token” algorithm
Security Static MAC address filtering
Dynamic ARP filtering - 16 Static Entries