Cisco 4321 Integrated Services router is design to deliver advanced services to the small enterprise branch environment. It delivers 50Mbps thoughtput by default.Ā With pay-as-you-grow performance, you can increase forwarding capacity to 100Mbps by buying FL-4320-PERF-K9 licenses. The Cisco ISR4321-AXV/K9 is the 4321 Application Experience with Voice (AXV) Bundle.
Figure 1 shows the appearance ofĀ ISR4321-AXV/K9.

Figure 2 shows the LEDs on the front panel of the Cisco ISR4321/K9 for reference. ISR4321-AXV/K9 is similar with it.
Ā 
There are eight LEDs on the front panel.
Table 2 shows the description of these LEDs.
|
LEDs |
Represents |
Color |
Description |
|
POE0 |
POE PSU |
Green |
PoE is on and providing power. |
|
Amber |
PoE is in a failed condition. |
||
|
Off |
PoE supply is not present. |
||
|
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. |
||
|
SSD |
mSATA Slot Status |
Green |
SSD mSATA is present and enabled. |
|
Amber |
Initialized with error. |
||
|
Off |
Not present. |
||
|
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. |
Figure 3 shows the back panel of Cisco ISR4321/K9Ā for reference. ISR4321-AXV/K9 is similar with it.
Ā 
Note:
|
ā |
Grounding |
⦠|
GE 0/0/1 (copper cable) port |
|
ā” |
Power switch |
ā§ |
GE 0/0/0 SFP (fiber-optic) port |
|
⢠|
Power input connector |
⨠|
NIM slots |
|
⣠|
GE āMGMTā port (with USB port below) |
ā© |
GE 0/0/0 RJ-45 (copper cable) port |
|
⤠|
USB Type B mini port |
āŖ |
Auxiliary port |
|
ā„ |
Console port |
||
Ā·The NIMs support 2 single-wide or 1 double-wide.
The Modules, Cards, Licenses & Accessories
Table 3 shows some recommended modules, cards, licenses and several cables.
|
Items |
Models |
Description |
|
License |
Cisco AppX license L-SL-4320-APP-K9= with 200 conns/ISRWAAS or 750 conns/vWAAS |
|
|
Console and Auxillary Cables |
Cisco CAB-CONSOLE-RJ45 Console Cable 6ft with RJ45 and DB9F |
|
|
Cisco CAB-CONSOLE-USB Console Cable 6 ft with USB Type A and mini-B |
||
|
Network Interface Modules |
Cisco Multiflex Trunk Voice and WAN network interface module |
|
|
Cisco Fourth-Generation Multiflex Trunk Voice and WAN network interface module |
||
|
Analog voice network interface card (ear and mouth) |
||
|
Cisco Analog voice network interface card NIM-2FXS |
||
|
Cisco Analog voice network interface card NIM-2FXS/4FXO |
||
|
SFPs for On-Board GE Ports |
Cisco GLC-LH-SMD 1000BASE-LX/LH SFP transceiver module, MMF/SMF, 1310nm, DOM |
|
|
Cisco GLC-ZX-SMD 1000BASE-ZX SFP transceiver module, SMF, 1550nm, DOM |
||
|
Cisco GLC-SX-MMD 1000BASE-SX SFP transceiver module, MMF, 850nm, DOM |
Compare to Similar Items
TableĀ 4Ā shows the comparison betweenĀ ISR4321-AXV/K9Ā andĀ ISR4331-AXV/K9.
| Product Number | ISR4321-AXV/K9 | ISR4331-AXV/K9 |
| Product Description | Cisco ISR 4321 AXV Bundle, with CUBE-10, IPBase, APP, SEC and UC licenses. | Cisco ISR 4331 AXV Bundle with PVDM4-32, CUBE-10, IPBase, APP, SEC and UC licenses. |
|
Aggregate Throughput |
50 Mbps to 100 Mbps |
100 Mbps to 300 Mbps |
|
Total onboard WAN or LAN 10/100/1000 ports |
2 |
3 |
|
RJ-45-based ports |
2 |
2 |
|
SFP-based ports |
1 |
2 |
|
NIM slots |
2 |
2 |
|
Onboard ISC slot |
1 |
1 |
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