SDLC configuration Command Directory
sdlc address sdlc-address
Configuring
SDLC address of SDLC secondary station
|
explanation: |
Numeric Area |
Sdlc-address |
Address of SDLC
secondary station. |
1-0xfe |
none
SDLC
protocol allows multiple virtual circuits to run on physical link of SDLC. One
terminal connects with the primary station, the other terminal connects with
the secondary station. In order to distinguish each virtual circuit, SDLC
address shall be designated to each virtual circuit. As the mode of SDLC is the
unbalanced one, main equipment can connect with multiple sole secondary
equipment through shared ware or SDLC exchanger. But the connection cannot be
set up between the equipment. So when the address of the secondary equipment is
identified, the normal communication between SDLC equipment of the same group
can be ensured. The command designated SDLC address, which is exclusive on a
physical port, for the virtual circuit. SDLC address configured on Synchronous
port is actually the address of SDLC secondary station connected with the
interface.
SDLC address on a router is effective exclusively on a physical
interface, which means that SDLC address configured on the different interfaces
are the same.
Configuring
a SDLC station C1
int s1/1
sdlc address c1
sdlc k length
Configuring
the size of the window for transmitting SDLC, namely the maximum frames sent
one time and unconfirmed by the opposite terminal
|
explanation: |
Numeric Area |
length |
The size of
window for transmission |
1-7 |
7
none
Configuring
the window for transmission of sdlc as 3
int s1/1
sdlc K 3
sdlc n1 length
Configuring
the maximum length of fame receivable of SDLC, namely N1 value defined by
protocol.
|
explanation: |
Numeric Area |
Length |
The maximum
length of frame receivable |
1-1500 bytes |
1500 bytes
none
Configuring
the maximum length of frame receivable of a SDLC
int s1/1
sdlc n1 1200
sdlc n2 times
Configuring
the maximum times of retransmit of SDLC, namely N2 value defined by protocol.
|
explanation: |
Numeric Area |
Times |
Maximum times of
retransmit |
1-255 |
20 times
none
Configuring
the maximum times of retransmit of a SDLC as 12
int s1/1
sdlc n2 12
sdlc t1 seconds
Configuring
the time of SDLC’s waiting for response, namely T1 value defined by protocol.
|
explanation: |
Numeric Area |
Seconds |
The time of
waiting for response |
1-64s |
3s
none
Configuring
the time of a SDLC’s waiting for response as 30s.
int s1/1
sdlc t1 30
sdlc
sdlc-largest-frame sdlc-address length
Configuring
the maximum length of frame receivable of each secondary station
|
explanation: |
Numeric Area |
Length |
Maximum length
of frame receivable |
1-1500 bytes |
265 bytes
none
Configuring
the maximum length of frame receivable of a SDLC as 1200
int s1/1
sdlc sdlc-largest-frame 1200
sdlc partner mac-address
sdlc-address
Configuring
the mapping of SDLC secondary station and remote MAC address, thus the
connection is set up between the secondary station and remote equipment.
|
explanation: |
Numeric Area |
Mac-address |
MAC address of
remote equipment |
48 bytes |
Sdlc-address |
Address of
secondary station |
1-0xfe |
none
none
Configuring
0011.1122.3344 for C1 station of a SDLC
int s1/1
sdlc partner
0011.1122.3344 C1
sdlc
poll-limit-value times
Configuring
the maximum times of SDLC query to secondary station.。
|
explanation: |
Numeric Area |
times |
The maximum
times of query to secondary station |
1-10 |
1
When the mast
station inquires the secondary station and the secondary station sends the data
frame equal to the size of a full window for transmission, the primary station
can re-inquire the secondary station rather than the next secondary station.
The command is used for configuring the times of consecutive inquiry to a
secondary station.
Configuring
the maximum times of a SDLC’s inquiry to the secondary station
int s1/1
sdlc poll-limit-value 10
sdlc
poll-pause-timer seconds
Configuring
the interval of SDLC inquiry to the secondary station
|
explanation: |
Numeric Area |
seconds |
Time Interval |
100-10000 ms |
100 ms
none
Configuring
the time interval of a SDLC as 1200ms
int s1/1
sdlc poll-pause-timer 1200
sdlc saps sdlc-address
local-sap remote-sap
Configuring
SAP value used for the connection between SDLC and remote equipment
|
explanation: |
Numeric Area |
Sdlc-address |
SDLC address of
secondary station |
1-0xfe |
Local-sap |
SAP value used
by the secondary station |
1-254 |
Remote-sap |
SAP value used
by remote terminal |
1-254 |
The
secondary station and remote terminal both use 0x04.
none
Configuring SAP value used by the secondary station C1 of a SDLC as
8, and SAP value used by the remote terminal as 24.
int s1/1
sdlc saps C1 8 24
sdlc role {primary|secondary}
Configuring
the type of SDLC station
Parameter: |
explanation: |
Numeric Area |
Primary |
Configuring the
port into SDLC primary station |
NA |
secondary |
Configuring the
port into SDLC secondary station |
NA |
primary
SDLC is an
unbalanced mode link layer, the status of the connected equipment on the two
terminals are not equal, of which one terminal plays a leading role and
controls the whole process of connection, it is called the primary station, the
other terminal is passive and controls the primary station, it is called
secondary station. In order to encapsulate the role of interface configuration
of SDLC protocol, the user shall make the decision according to the role of
SDLC equipment connected with the router when configuring SDLC role. If SDLC
equipment connected with the interface is primary, the interface shall
be set as secondary. If the connected equipment is secondary, the
interface shall be set as primary. Under general conditions, the
mainframes at the center are primary. The terminal equipment such as Unix
host and ATM are secondary.
Configuring
SDLC as secondary station
int s1/1
sdlc role secondary
sdlc simultaneous [full-datamode |
half-datamode]
Configuring
half-duplex and full duplex working mode of SDLC .
|
explanation: |
Numeric Area |
Full-datamode |
full duplex
working mode |
none |
Half-datamode |
Half-duplex
working mode |
none |
full duplex
working mode
none
Configuring
a SDLC primary station into harf-duplex working mode
int s1/1
sdlc simultaneous half-datamode
sdlc vmac mac-address
Configuring
virtual MAC address of SDLC secondary station. The address is used for
communication with remote Ethernet or token ring networks.
|
explanation: |
Numeric Area |
Mac-address |
Virtual MAC
address of secondary station |
48 bytes |
none
Among 48-byte digits of virtual MAC address, the last 8 digits shall
be 0. For instance, when vmac is set as ab12.3456.78c1, the configuration
should be ab12.3456.7800.
Configuring
the virtual MAC address 4000.0099.9900 for a SDLC
int s1/1
sdlc vmac 4000.0099.9900
sdlc xid sdlc-address
xid-number
Configuring
XID of SDLC secondary station.
|
explanation: |
Numeric Area |
Sdlc-address |
SDLC address of
secondary station |
1-0xfe |
Xid-number |
XID value of
secondary station |
Four-digit
hexadecimal system number |
none
XID is the
identifier of an equipment identity in SNA family, the front 12 bytes
represents network number and last 20 bytes represents node point number. There
are two kinds of equipment, namely PU2.0 and PU2.1. The equipment of PU2.1 has
been configured with XID and can present its identity through exchange of XID,
while the equipment of PU2.0 does not exchange XID and does not have XID.
Therefore PU2.1 type of equipment does not need to be configured with the
command. For the equipment of PU2.0, a XID should be designated for it.
If the
command is not configured, router will view it as PU 2.1. If the command is
configured, router will view it as PU 2.0. These are the just differences with
the commands of Cisco. When the command of Cisco is used for configuring PU
2.1, xid-poll parameter needs to be added to the back of the command “sdlc
address”. When all types of PU are 2.1 type, they can be defined as the uniform
command “sdlc role prim-xid-poll”.
Notes: The command shall be configured when the
interface is disconnected.
Configuring
xid of station C1 of a SDLC as 01020007
int s1/1
sdlc xid C1 01020007
sdlc holdqueue address
length
Configuring
the length of transmit queue of SDLC
|
explanation: |
Numeric Area |
Address |
Address of
secondary station |
1-0xfe |
Length |
Length of queue |
1-65535 |
none
If the
number of data packet requested by the upper lever to send is bigger than the
value, the date packet will be abandoned.
Configuring
the length of queue of station C1 of a SDLC as 100
int s1/1
sdlc holdqueue C1 100
debug sdlc error
This command
is used for exporting the wrong debug information of SDLC.
none
none
The command is used for exporting all the erroneous information occurring in SDLC operation and erroneous location.
debug sdlc state
This command
is used for exporting the information of the state machine of SDLC.
none
none
The output
format is as follows:
SDLC Serial0/0:
CONNECT.Req on station C1, state DISC -> WAIT_CONNECT
SDLC Serial0/0:
Rx I on station C1, state CONNECT
debug sdlc packet
The command
is used for exporting the information of receipt and transmit of packet.
none
none
The content
of the packet that should be interpreted. The output format shall refer to LAPB
and X.25.
SDLC Serial0/0:
TX -> Info(3, 4) on station C1, Poll set, Len 25 Notes: 3 means
N(S), 4 means N(R).
Ff ff ff ff
ff ff ff ff ff ff ff This is the
specific content of packet.
SDLC Serial0/0:
RX <- RR(4) on station C1, Final