Data Center LAN Migration Guide - Juniper Networks

TRIGGER EVENT NETWORK INSERTION LAyER(S) DESIGN CONSIDERATIONS
Business continuity
Workload mobility
Data center core network
upgrade
Higher performance security
services
IOS to Junos OS Conversion Tools
Data Center LAN Migration Guide
Core layer Sufficiency of existing physical capacity
VLAN definitions for applications/services segmentation
VLAN/VPN routing and forwarding (VRF) mapping
Latency/performance requirements
Traffic engineering/QoS requirements
Connecting with legacy/proprietary IGP protocols
Data Center Interconnect (DCI) method
Stretching VLANs
• Physical layer extension via dense wavelength-division
multiplexing (DWDM)
• VPLS/MPLS
Interoperability testing definitions
IOS configuration for conversion to Junos OS
Aggregation/core layer Insertion Capacity and throughput requirements
Compliance and audit requirements
Existing security policy rules migration
Zone definitions
Virtual machine security requirements for virtual firewall
Interoperability testing definitions
For organizations with existing Cisco IOS configurations, Juniper provides an IOS to Junos OS (I2J) migration tool.
I2J is a web-based software translation tool that converts Cisco IOS configurations for Cisco Catalyst switches and
Cisco routers into their Junos OS equivalent. I2J lowers the time and cost of migrating to Juniper router and switching
platforms. The I2J tool supports configurations for physical and logical interfaces, routing protocols, routing policies,
packet filtering functions, and system commands. I2J also automatically flags any conversion errors or incompatible
configurations. It can be used for IOS configuration conversions at all network insertion points. Figure 9 shows a
sample I2J screen.
Since all network operating systems are not created equal, it should be noted that a straight IOS to Junos OS
conversion may mask opportunities to improve the overall network configuration or implement features or functions
not possible with IOS. Conversely, I2J also helps identify IOS-specific features which may not be implementable under
Junos OS in a direct 1:1 mapping but need to be implemented in an alternate manner.
Figure 10: Converting IOS to Junos OS using I2J
I2J is only available to Juniper customers or partners with a support contract via a secure Advanced Encryption
Standard (AES) 256-bit encrypted website found at: https://i2j.juniper.net.
Copyright © 2012, Juniper Networks, Inc. 31