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This feature introduces graceful Routing Engine switchover (GRES) support for ARP entries. You can configure GRES on a switch with redundant Routing Engines or on a Virtual Chassis, allowing control to switch from the primary Routing Engine to the backup Routing Engine with minimal interruption to network communications.
| Product / Application | Software | Introduced Release |
|---|---|---|
| EX2300 | Junos OS | 15.1X53-D50 |
| EX2300-C | Junos OS | 15.1X53-D50 |
| EX2300 Multigigabit | Junos OS | 18.1R2 |
| EX3400 | Junos OS | 15.1X53-D50 |
| EX3400-VC | Junos OS | 15.1X53-D50 |
| EX4000-8P | Junos OS | 24.4R1-S2 |
| EX4000-12P | Junos OS | 24.4R1-S2 |
| EX4000-12T | Junos OS | 24.4R1-S2 |
| EX4000-24P | Junos OS | 24.4R1-S2 |
| EX4000-24T | Junos OS | 24.4R1-S2 |
| EX4000-48P | Junos OS | 24.4R1-S2 |
| EX4000-48T | Junos OS | 24.4R1-S2 |
| EX4100 | Junos OS | 22.2R1 |
| EX4100-F | Junos OS | 22.2R1 |
| EX4100-H-12MP | Junos OS | 24.4R1 |
| EX4100-H-24F | Junos OS | 24.4R1 |
| EX4100-H-24MP | Junos OS | 24.4R1 |
| EX4100 Multigigabit | Junos OS | 22.2R1 |
| EX4300 | Junos OS | 13.2X50-D10 |
| EX4300-VC | Junos OS | 13.2X50-D10 |
| EX4300 Multigigabit | Junos OS | 18.2R1 |
| EX4400 | Junos OS | 21.1R1 |
| EX4400 Multigigabit | Junos OS | 21.2R1 |
| EX4400-24X | Junos OS | 23.1R1 |
| EX4600 | Junos OS | 13.2X51-D25 |
| EX4600-VC | Junos OS | 13.2X51-D25 |
| MX150 | Junos OS | 17.3R1 |
| MX240 | Junos OS | 9.2R1 |
| MX304 | Junos OS | 22.2R3 |
| MX480 | Junos OS | 9.2R1 |
| MX960 | Junos OS | 9.2R1 |
| MX2008 | Junos OS | 15.1F7 |
| MX2010 | Junos OS | 12.3R2 |
| MX2020 | Junos OS | 12.3R1 |
| MX10003 | Junos OS | 17.3R1 |
| MX10004 | Junos OS | 22.3R1 |
| MX10008 | Junos OS | 18.2R1 |
| MX10016 | Junos OS | 19.2R1 |
| vMX | Junos OS | 14.1R5 |
| Next Generation Port Extender | Junos OS | 25.4R1 |
| PTX3000 | Junos OS | 13.2R2 |
| PTX5000 | Junos OS | 12.1X48R1 |
| PTX10008 | Junos OS | 17.2R1 |
| PTX10016 | Junos OS | 17.4R1 |
| QFX5110 | Junos OS | 15.1X53-D210 |
| QFX5120-48YM | Junos OS | 20.4R1 |