The Cisco 4431 is suggested for migration from the existing Cisco 3925 and 3945 routers. It offers 500-Mbps performance, upgradable to 1 Gbps, in a 1RU form factor with three NIM slots. Like the 4451, the 4431 includes an option for built-in redundant power.
4-core processor (one control and three services processors)
6-core data plane
Up to 16-GB control and services memory
Device Type | Router |
Enclosure Type | Desktop, rack-mountable - modular - 2U |
Data Link Protocol | Ethernet, Fast Ethernet, Gigabit Ethernet |
Network / Transport Protocol | IPSec, PPPoE |
Remote Management Protocol | SNMP, RMON |
Features | Syslog support |
Compliant Standards | IEEE 802.3 |
Power | AC 120/230 V ( 47/63 Hz ) |
Dimensions (WxDxH) | 43.81 cm x 46.99 cm x 8.89 cm |
Weight | 15 kg |
Table below shows the LED descriptions
LEDs | Represents | Color | Description |
PSU | Power Supply Unit (P0 and P1) Status | Green | PSU is on and is providing power. |
Amber | PSU is on but with errors or in a failure condition. | ||
Off | Power supply is turned off. | ||
GE POE | Internal PoE Daughter Card Status | Green | PSU is installed and providing power |
Amber | PSU is installed but in a failure condition. | ||
Off | PSU is off. | ||
FLASH | System Flash Status | Blinking Green | Compact flash/eUSB flash is present and currently being accessed. |
TEMP | Temperature Status | Solid green | All temperature sensors in the system are within acceptable range. |
Amber | One or more temperature sensors in the system are outside the acceptable range. | ||
Off | Temperature is not being monitored. | ||
PWR | System Power | Green | System power is on and functioning correctly. |
Green blinking | System power is in the process of shutting down. | ||
Amber | System power is up, but low level initialization failed. | ||
Amber blinking | System power is up, but the system failed to come out of reset. | ||
Off | System power is off. | ||
POE BOOST | Power Over Ethernet Boost Mode | Green | Two PoE power supplies are installed and operating in boost mode. |
Off | This can mean one of the following: ·No PoE PSU installed. ·One PoE PSU installed. ·Two PoE PSUs installed and operating in redundant mode. | ||
ISC | ISC Slot Status | Green | PVDM4 is present and enabled. |
Amber | Initialized with error. | ||
Off | Not present. | ||
FAN | Fan Status | Green | All fans are operating. |
Amber | One fan has stopped working. | ||
Blinking Amber | Two or more fans have stopped working, or the fan tray has been removed. | ||
Off | Fans are not being monitored. | ||
STAT | System Status | Solid green | System operating normally. |
Blinking amber | BIOS/Rommon is booting. | ||
Amber | BIOS/Rommon has completed booting, and system is at Rommon prompt or booting platform software. | ||
Off | System is not out of reset or BIOS image is not loadable. |
Table below shows Cisco 4000 Series Performance Licenses
Platform | Performance-on-Demand License | Features |
ISR4451 | FL-44-PERF-K9 | Increases the performance from base performance 1 Gbps to 2 Gbps |
ISR4431 | FL-44-PERF-K9 | Increases the performance from base performance 500 Mbps to 1 Gbps |
ISR4351 | FL-4350-PERF-K9 | Increases the performance from base performance 200 Mbps to 400 Mbps |
ISR4331 | FL-4330-PERF-K9 | Increases the performance from base performance 100 Mbps to 300 Mbps |
ISR4321 | FL-4320-PERF-K9 | Increases the performance from base performance 50 Mbps to 100 Mbps |
ISR4221 | FL-4220-PERF-K9 | Increases the performance from base performance 35 Mbps to 75 Mbps |