Switches running early versions of this train (SE1 through SE4) would slowly consume DRAM until the processor hit critical thresholds (often <10% free memory). This resulted in:
| Feature | Performance Metric | | :--- | :--- | | | 160 Gbps (StackWise) | | Forwarding Rate | 101 Mpps (million packets per second) | | Concurrent VLANs | 1,005 | | MAC Address Table | 12,000 entries | | Routing Table (IPv4) | 11,000 routes | | Jumbo Frame Support | 9,216 bytes | c3750e-universalk9-mz.150-2.se11.bin
It brought enhanced security tagging features to the access layer, allowing network admins to apply security policies based on user groups rather than IP addresses. Stability: Switches running early versions of this train (SE1
The k9 designation confirms it supports strong payload encryption (SSH, SSL, SNMPv3). Release Context Release Context The is a specific Cisco IOS
The is a specific Cisco IOS software image designed for the Cisco Catalyst 3750-E series of switches. This file represents the 15.0(2)SE11 release, which is a maintenance rebuild focused on providing critical security updates and bug fixes for enterprise-grade hardware. File Overview and Specifications