D-Link DI-1750 Reference Manual page 424

Run command: show compress
We can get information below:
DLC Data Statistics ---
In interface Serial0/0 compress type Lempel-Ziv
Receive bytes compressed: 0
Receive bytes decompressed: 0
sent bytes compresseds: 0
sent bytes original: 0
resyns: 0
Note：
When configured LZ, CPU resource of router is strained and other modules's performance is affected, you might as well
adjust compression mode to 3 or 2 to relax the CPU by configuring "dlc-compress lempel-Ziv mode 3" or "dlc-compress
lempel-Ziv mode 2"
If configured with MPPC compression protocol, basic configurations of the two interfaces are as below：
[DEFAULT@lns /config/]#int
Key Word:
U(undo) D(default) Q(quit)
(00)FastEthernet FastEthernet interface
(01)Ethernet
(02)Serial Serial interface
(03)Async
(04)Null Null interface
(05)Loopback
(06)Tunnel
(07)Dialer Dialer interface
(08)Multilink Multilink-group interface
(09)Virtual-template Virtual template interface
(10)Virtual-tunnel Virtual tunnel interface
(11)Vlan-intf Virtual LAN interface
Please Input the code of command to be execute(0-11): 02
Please input slot/port:3/2:0
Will you execute it? [Y]:y
Current Status:s3/2:0
Key Word:
Q(quit)
(00)backup
(01)bandwidth
(02)change
(03)chmem
(04)clear_drv
(05)controller
(06)crypto
(07)custom-queue-list
(08)delay
(09)description
(10)dlc-compress
(11)encapsulation
(12)exit
(13)fair-queue
(14)help
(15)interface
(16)ip
(17)mtu
(18)multilink-group
(19)pdp
(20)peer
Model Name
Ethernet interface
Asynchronous interface
Loopback interface
Tunnel interface
Current Directory: config
Modify backup parameters
Set the interface bandwidth
lantency
Change memory of system
clear interface statistic counter
controller configuration
Configure encryption module
Assign a custom queue list to interface
Set the interface delay
Set the interface description
set compress protocol
Set encapsulation type for an interface
exit / quit
enable fair queue on interface
Description of the interactive help system
interface configuration
IP configuration commands
Set the interface MTU
Put interface into a multilink bundle
pdp configuration commands
Peer parameters for point to point interfaces
-- test error process
- 422 -