Link Analysis - ABB EDS500 Series Function Manual

Functions
[dB]
35
30
25
20
15
10
5
0
0 1 2
Figure 9: Achievable signal quality in relation to distance
2.15.7

Link Analysis

2.15.7.1 Information and Frame Statistics
To get an overview over the state of a DSL link, the output of the command <show interface
dsl1> and <show interface dsl2> can be used. It shows information on the link quality and
frame statistics.
Example of the display of DSL interfaces
s w i t c h > s h i n t d s l 1
< s h o w i n t e r f a c e d s l 1 >
D S L i n t e r f a c e 1 i s u p , l i n e p r o t o c o l i s u p ( t o o k 0 d a y s
0 0 : 0 1 : 0 2 ) . D S L m o d e i s s e t t o m a s t e r , e n c a p s u l a t i o n i s h d l c -
e n h a n c e d . I n t e r f a c e s p e e d i s 1 0 2 4 k b p s .
I n c o m i n g Q o S t a g i s t r u s t e d . P r i o r i t y i s b a s e d o n 8 0 2 . 1 p t a g ,
c o s i s s e t t o 0 i f n o t a g f o u n d . O u t g o i n g Q o S t a g e n a b l e d f o r
n a t i v e v l a n 0 . I n t e r f a c e i s t h e s p a n n i n g t r e e p o r t 1 2 8 . 2 , d e s -
i g n a t e d a n d f o r w a r d i n g .
F r a m e S t a t i s t i c s :
D i r .
O u t
I n
1 / 1 0 / 6 0 s o u t d a t a r a t e i s 5 / 5 / 5 k b p s , i n i s 0 / 0 / 0 k b p s .
1KGT151021 V000 1
Signal quality (SHDSL.bis)
3 4 5 6 7 8 9
G o o d D r o p p e d C R C E r r . F r a g m e n t A l i g n E . O v e r s i z e N o n -
9 9 0 3 6 0 0
3 6 8 1 0
10 11 12 13 14 15 17
16
- -
0
DSL Interfaces
192 kbps
256 kbps
512 kbps
768 kbps
1024 kbps
1536 kbps
2048 kbps
3072 kbps
4096 kbps
5696 kbps
8192 kbps
10240 kbps
11400 kbps
18 19 20 21 22 23 24
- -
0 0
25 [km]
U n i c .
9 8 2 2 8 8
3 6 8 1
45