Andrew
The Q&A's are quite good for this.
Main differences between 3750 and 3750-E
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Switch Architecture
Q. What are the notable differences/features between the Cisco Catalyst 3750-E and the Cisco Catalyst 3750?
A. The differences are as follows:
• Cisco Catalyst 3750-E provides a true line-rate (nonblocking) Gigabit Ethernet to the desktop solution with two line-rate 10 Gigabit Ethernet uplinks.
• The Cisco Catalyst 3750-E is a stackable switch, and it is backward compatible and stacks with the existing Cisco Catalyst 3750 family switches.
• The Cisco Catalyst 3750-E has a backplane switching ASIC, which also makes forwarding decisions, to help the switch perform wire-rate local switching.
• The Cisco Catalyst 3750-E supports dynamic a pluggable module that converts a 10 Gigabit Ethernet slot into a slot that can fit 2 Gigabit Ethernet ports. This allows for easy migration for customers moving from Gigabit Ethernet uplinks to 10 Gigabit Ethernet uplinks.
• The Cisco Catalyst 3750-E supports hot-swappable power supplies.
• The Cisco Catalyst 3750-E supports jumbo frame routing and increases the frame size to 9216 bytes.
• The Cisco Catalyst 3750-E supports uncompressed IPv6 address tables. This allows the software to program the full IPv6 address in the hardware. In addition, equal cost routing for IPv6 uses the uncompressed IPv6 address.
• The Cisco Catalyst 3750-E supports destination stripping of unicast packets.
Main differences between 3750-E and 3750-X
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Q. What are the differences between the Cisco Catalyst 3750-X and 3560-X and the rest of the Catalyst 3000 switches?
A. The Catalyst 3750-X and 3560-X are line rate nonblocking switches that are identical to the Catalyst 3750-E and 3560-E Series with the following added features:
• Cisco StackPower technology: Aggregates and shares power supplies in a stack and supports a zero-footprint redundant power supply
• Network modules: Field-replaceable uplink, 1 Gigabit and 10 Gigabit versions
• Full 802.3at PoE+: Supports 30W per port on all 48 ports in a single RU switch
• Three software feature sets: LAN Base, IP Base, and IP Services
• Dual redundant power supplies and fans: Four power supply options, including a DC power supply for PoE
• MACsec: Hardware-based encryption (802.1ae). Includes MACsec Key Agreement (MKA) (included in Dot1X-rev)
As for EoS/EoL, if you go to the product page for each switch there will be a link to any EoS/EoL announcements made among the links for datasheets etc.
Jon
