ALC+2 Training Slide
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Transcript of ALC+2 Training Slide
ALCplus2 1
ALCplus2
ACM radio link
ALCplus2 2
Training items
1. ALCplus2
2. SCT or WEBLCT console
3. WEB LCT commands
4. Link configuration
ALCplus2 3
IDU
ALCplus2 (single board)
ALplus2/ALCplus2 4
ALCplus2 HW configurations
ALplus2/ALCplus2 5
ODU
AL plus and ALC plus Copyright Siae Microelettronica S.p.a.8
ODUAS 03 edition
ASN
Unprotected ODU
1+1 ODU
ALCplus2 6
ALCplus2 Connectors
16 E1 75/120
STM1 (1+0/1+1)
LAN 2, 4
LAN 1, 3
RJ45 management LAN 3, 4
(optical)
2 E1 75/120
Trib A and B
Nodal bus
ODU cable
-48Vdc (in parallel)
Power supply Fuse
USB
Alarm LEDs:URG, NURG, SW, TEST, power ON
1 - 8 9 - 16
ALCplus2 7
Connection to equipment
• LAN – using an internet browser with the MNGT port address
• USB/RS232 – using a serial connection using the WebLCT Console (on SIAE site: http://siaemic.com and, after the login, Download area, Software, WEB LCT). The connection address is assigned by
the equipment itself) with LCT port or RS232 port.
ALCplus2 8
SCT
ALCplus2 9
WEBLCT console
ALCplus2 10
Management ports 1/2
PC address assigned by IDU
Traffic ethernet ports can be used for management (in a separated VLAN)
ALCplus2 11
Management ports 2/2
EOC can arrive to IDU also through a Trib A or Trib B using a timeslot (…slow)
In case of both equipments (loc. and rem.) in the same LAN
ALCplus2 12
WEB LCT
SCT: Equipment menu
WEB LCT main menu is similar to SCT Equipment menu.
This software manages a single terminal.
ALCplus2 13
Remote element list
In order to have the whole link in one page only, local equipment is declared “managed by SCT”, remote one is declared “remote link”. Opposite configuration on remote side.
172.18.81.20 WEBLCT
172.18.81.22 WEBLCT
172.18.81.20 172.18.81.22
Local
Local
ALCplus2 14
ALCplus2 status display
local alarms
configuration
activity
name and hardware
Rx active branch
Tx and Rx ACM
profiles
TDM capacity
ethernet capacity
RF channel and
frequencies Tx and Rx power
Tx active branch
connection
IDU C°
ALCplus2 15
WEB LCT: equipment configuration
Configuration
ACM setting
Alarms thresholds, Tx and Rx switches
RF channel
Tributaries
Commands to configure a single equipment
ALCplus2 16
ALCplus2 IDU Configurator
1..81..8
ALCplus2 17
ALCplus2 Node connections
IDU 1 NB1 NB2
IDU 2 NB1 NB2
IDU 3 NB1 NB2
IDU 8 NB1 NB2
Max 8
LAN 1 LAN2
LAN 1 LAN2
LAN 1 LAN2
LAN 1 LAN2
. . . . . . . . .
From LAN 1 of IDU8 From NB1 of IDU8
To LAN 2 of IDU1 To NB2 of IDU1
Node Traffic transport:
TDM (E1) Nbus cable
LAN LAN cable
Max 8
LAN1 and LAN2 are used for cabling
ALCplus2 18
ALCplus2 node manager (SCT only)Example: 4 idu node
IDUs
IDUs connected through NBus
Commands
IDUs connected through LAN
ALCplus2 19
Nodal matrix
It’s a logical matrix relevant a logical IDU made up by the
physical IDUs
The cross connections between IDUx and the Nbus and Nbus and
IDUx+1 are automatically performed
ALCplus2 20Nodal matrix
ALCplus2 21
Nodal Ethernet switch configurator
ALCplus2 22
Nodal Port based VLAN
LAN1 and LAN2 are used for cabling
Connections are bidirectional automatically
ALCplus2 23
Node VLAN table
LAN1 and LAN2 are used for cabling
ALCplus2 24
VLAN table
ALCplus2 25
Ethernet ports of the IDUs of the node
LAN1 and LAN2 are used for cabling
IDU1 Interface
ALCplus2 26
Ethernet ports of the IDUs of the node
LAN1 and LAN2 are used for cabling
IDU1 VLAN
ALCplus2 27
Ethernet ports of the IDUs of the node
IDU1 priority
LAN1 and LAN2 are used for cabling
ALCplus2 28
Ethernet ports of the IDUs of the node
IDU1 LAN3 loop
LAN1 and LAN2 are used for cabling
ALCplus2 29
Ethernet ports of the IDUs of the node
IDU1 LAN3 STP
LAN1 and LAN2 are used for cabling
ALCplus2 30
STP mode of each IDU
ALCplus2 31
STM1 synchronisation - ALCplus2
ALCplus2 32
T2 / T3 1
ALCplus2 33
T2 / T3 2
ALCplus2 34
Synchro status
Source with the higher priority is present, with good quality and selected
All the sync. sources are degraded (out > 9.9 ppm) or missing. The IDU keeps the estimation of the last good
source used
Clock internally generated
ALCplus2 35
ACM setting
Downshift (from 256QAM to 4QAM): the modulation complexity and the radio capacity decrease.
Upshift (from 4QAM to 256QAM): the modulation complexity and the radio capacity increase.
For each modulation profile the number of extra TDM (and then the Ethernet bitrate) can be set.
Radio capacity:
Ethernet
Permanent TDM (high priority E1)
Extra TDM (low priority E1)
ACM enable: bandwidth and reference modulation (its mask can not be exceeded by any ACM profile)
ACM disable: bandwidth and used modulation
ALCplus2 36
Permanent and extra E1
Permanent: E1 present with all ACM profile
Extra
Capacity for E1 streams
In ALCplus2 the first 2
extra are A and B
ALCplus2 37
Extra TDM priority and order
A, B and after 1-16As you need
1-16 and after A, B Keep attention to set the same config. in order to mantain the traffic
ALCplus2 38
Adaptive Code Modulation 1 / 2
ACM profilesIn ALplus2/ALCplus2 radio family uses Adaptive Code and Modulation (ACM) in order to employ the correct modulation
profile depending on the Rx signal quality.
Available ACM profiles are the following:• · 4QAM strong • · 4QAM• · 8 PSK• · 16 QAM• · 32 QAM• · 64QAM• · 128QAM• · 256 QAM
ACM switchingThe usage of the previous modulation profiles in a fixed channel bandwidth results in a variable capacity.
The criteria defining the necessity of an ACM switching, upshift or downshift, is the Rx S/N ratio.
• · Upshift – When there is an increase of received S/N, within the same Channel Spacing, the modulation complexity is increased in the direction from 4QAM strong to 256QAM increasing the spectral efficiency
• · Downshift – When there is a decrease of received S/N, within the same Channel Spacing, the modulation is reduced in the direction from 256QAM to 4QAM strong reducing the spectral efficiency,
These profiles operate in an RF channel with the following bandwidth:
• · 7 MHz
• · 14 MHz
• · 28 MHz
• · 56 MHz
ODU pass band filters
ALCplus2 39
Adaptive Code Modulation 2 / 2
ACM setting The ACM can vary modulation profiles between two extremes defined by the operator through software
configuration: Upper Modulation and Lower Modulation.• · Upper Modulation – When propagation into the given radio channel is in the better condition (high Rx • S/N), the radio link is working at the maximum throughput defined at Upper Modulation: the highest • modulation profile that ACM can employ• · Lower modulation – When propagation into the given radio channel is in the worst condition (low Rx • S/N), the radio link is working at the minimum throughput, defined at Lower Modulation: the lowest • modulation profile that ACM can employ
Tx Power mode Tx power mode can be set as Constant Peak or Constant Average (constant bolometer measurement).
• · Constant Peak – Tx power is at maximum at 4QAM and at 256QAM is reduced (typical 4.5 dB) so the • RF Tx amplifier can operate in better linear conditions
• · Constant Average – Tx power is the same at any modulation (…is the Upper Mod Tx power)
The Tx Power mode is set depending on the modulation license of the user
With Constant Average Tx power (Tx Power Constant Peak Mode = Disable), the Tx power at 4QAM and any other modulation is the same, so if Upper Modulation is 256QAM the output power at any modulation is the same of 256QAM which is 4.5 dB less than 4QAM.
The result is that enabling 256QAM gives a big advantage for traffic but less link budget margin at 4QAM.
ALCplus2 40
Power profiledBm
4QAM 8PSK 16QAM 32QAM 64QAM 128QAM 256QAM
+23
+28
+23.5
+24
+25
AVERAGE
PEAK
AS13 13GHz
ALCplus2 41
Average
In Average the Max Pout is the Max
Pout of the upper mod (23dBm @
256 QAM) and is the same at any
profile
ALCplus2 42
Peak and 4QAM as ref. mod.
With Peak mode enabled and 4 QAM as reference modulation, the max Pout is the max Pout of the radio at any modulation
ALCplus2 43
Peak request and 256QAM as ref. mod.With Peak mode enabled and 256 QAM as reference modulation, the max Pout is the Pout that makes the transmitted spectrum not going out from the mask relevant to reference modulation. If reference modulation is not the one that allows the max Pout of the radio, the Tx power mode comes back to Average.
Every time the reference modulation is higher than the lower modulation…the power mode becomes Average
ALCplus2 44
Max CapacityRF Bandwidth 7MHz 14MHz 28MHz 56MHz
ALCplus2 45
Radio Throughput (max E1 number)
Radio Throughput E1
48
17
34
5
10
20
40
7
14
30
60
10
20
40
80
12
25
50
80
15
30
60
80
17
35
70
80
20
40
80 80
0
10
20
30
40
50
60
70
80
90
7 MHz 14 MHz 28 MHz 56 MHz
Channel Bandwith
Ma
x E
1
4QAMst
4QAM
8PSK
16QAM
32QAM
64QAM
128QAM
256QAM
ALCplus2 46
General Preset
Rx Power Low alarm threshold
Local Tx switch in case both Remote Rx are alarmed: if remote Rx are alarmed for more than 10 sec in one minute, on local side Tx switch is performed and a Tx Fail alarm is active (to reset manually)
Link name
ALCplus2 47
Tributary traffic
• E1
- Permanent (high priority)
- Extra (low priority) In ALCplus2, trib A and B are here!
• STM-1
- STM-1 1+0
- STM-1 1+1
ALCplus2 48
E1 Tributaries
Enable/DisableRIGHT: E1 loop Radio side
Line side
Radio side
E1 name
alarms
Remember that exist• Permanent E1 (in all ACM
profiles)• Extra E1
LEFT: E1 loop Line side
ALCplus2 49
STM-1 Frame
• Bit rate = 155,52 Mbit/s , Frame Period = 125s (rec. G.707)
• Byte matrix: 9 lines and 270 columns row by row transmission (first byte is on the left of the top line )
• Every Byte is 64 Kbit/s channel
• STM-1 frame has a payload big enough for 1 E4 (140 Mbit/s) or 3 E3 (3 x 34 Mbit/s) or 63 E1 (63 x 2 Mbit/s)
ALCplus2 50
SOH
64Kbit/sRSOH
MSOH
First 9 bytes of all the lines represent SOH (Section Overhead), made up by RSOH and MSOH separated by 9 bytes of AUOH (AU pointer)
ALCplus2 51
RSOH Regenerator Section Overhead
ALCplus2 52
MSOH Multiplex Section Overhead
ALCplus2 53
Path overhead The Virtual Container is made up by path overhead and relevant container:
VC = POH + C
VC path overhead allows BER extimations, alarm and trouble information, multiplation indication.
Depending on C, 2 different POH exist:
VC-3 / VC-4 POH (with E3 and E4)
VC-11 / VC-12 POH (with A1 and E1)
ALCplus2 54
Compensation of variation of payload bit rate (with respect to nominal one) is obteined using stuffing.
In AUOH there are 6 bytes for justification signal and other 6 bytes (3 in SOH and other 3 adiacent in the same line of the payload) used for stuffing in order to adjust the position of VC first byte: Adjustment, if necessary, concerns 3 bytes more or less (154 s delay or anticipation) and the update is every 4 frames.
AUOH Administrative unit overhead
H1 H1 H1 H2 H2 H2 H3 H3 H3AUOH
RSOH
MSOH
Payload
ALCplus2 55
AU pointerFirst 6 bytes of AUOH contain: the pointer to position of VC first byte, the AU and the New Data Flag (it informs there are new data).
This is why AUOH is called POINTER
Byte H1 Byte H2
bit
n° AU POINTERNDF
Administrative Unit = AUOH + VC
AU4 = AUOH + VC4
ALCplus2 56
Start = First Byte of VC4RSOH
MSOH
AU4 POINTER
9 lines
ALCplus2 57
TU, Tributary Unit, is made up by VC and overhead TUOH placed in a fixed position relevant to POH of higher order VC (where TU is placed)
In TUOH there are
- A pointer towards VC frame start - Stuffing bytes
TU12 = 4 columns of 9 bytes 2,304 Mbit/s capacity
TUG is a group of same order TU:
- TUG21= 3 x TU12
- TUG3 = 7 x TUG21 (= 21 x TU12)
TU and TUG
ALCplus2 58
STM-1 & C4Stuffing and justification
ALCplus2 59
High order POH (POH of VC4)• J1 Path Trace: it is the label relevant to VC4
• B3 : BIP-8 parity result of the previous VC4, in MST mode points out C4 quality
• C2 : signalling label that points out if VC4 is equipped
• G1 : RDI, Remote Defect Indication, used to transmit to remote terminal an alarm condition
• F2/H4/F3/K3/N1 : not used
• C4: 140Mbit/s container with justification, stuffing and overhead bits
• VC4 : is made up by C4 and POH (path over head). POH is the first VC4 column (9 bytes)
• AU4 : is made up by VC4 and AU pointer.
• STM-1 : is made up by AU4 and SOH
ALCplus2 60
STM-1 & E1
SOH
AU pointer
POH
POH
E1
Justification
ALCplus2 61
E1
AU4 VC4
TUG3
TUG21
TU12VC12C12
x 3
x 7
x 3
STM-1
…in a STM-1 can be inserted 63 E1
ALCplus2 62
STM-1 Tributaries
Line alarmsEnable/Disable
STM-1 Loops
J0 Path trace
If J0 Received is different from Expected TIM alarm
ALCplus2 63
STM-1 B2 quality thresholds
ALCplus2 64
VC4
VC4 alarms
J1 Path trace
If J1 Received is different from Expected TIM alarm
ALCplus2 65
VC4 B3 quality thresholds
DegradedExcessive
VC4 label: tugStructure
*Tug = Trib. unit group
ALCplus2 66
VC-12
Tug-3 = 1
Tug-2 = 7
VC-12 = 3VC-12 1-7-3
ALCplus2 67
Ethernet traffic
• Packet frame• Level 2 and Level 3• VLAN• Priority (Qos and PoS)• LLF
ALCplus2 68
802.3 PACKET FORMAT
Pre.
Octet (byte)
SFD DSAP SSAP lenDati
(LLC-PDU)pad FCS
7 1 6 6 2da 0
a 1500da 0 a 46 4
From 64 to 1518 Byte without tag
Start Frame Delimiter
Preamble: it permits receiver synchronisation
Destination Service Access Point: MAC address of destination
Source Service Access Point: MAC address of source
Frame Check Sequence
Lenght
ALCplus2 69
• MAC switching: - destination local = discarded - destination known = sent to the port- destination unknown = sent to all the ports
• MAC Address learning
• MAC Address ageing
• Auto negotiation : - port speed- duplex-mode
• MDI/MDIX crossover
• Layer 2 Flow Control / Back Pressure
Switch at Layer 2
ALCplus2 70
Ethernet switch
QinQ
91 00: field to add (the same on local and on remote switch) in case of double tag. This field is add after the Destination Address in the overhead before the transmission and is deleted by the switch on the other side as soon as it has been received.
The Double tag is the one set as default tag of each external port
Packet output queue depending on packet 802.1p priority
Life of addresses in the MAC address table
Max packet size
Queue emptying policy- 8421 WRR: 8 packets with queue 3, then 4 with queue 2, then 2 with queue 1 and then 1 with queue 0.
- Strict priority: a packet can go out only if the upper priority queue is empty
- Strict 3: all queue 3 packets can go out, after them all the other using 8421WRR policy
- Strict 3 and 2: all queue 3 and 2 packets can go out strictly, after them all the other using 8421WRR policy
WRR= Wait Round Robin mode
ALCplus2 71
CONNECTION EXAMPLESNO
VLAN
AL_ETH AL_ETH
NOVLAN
PC1
NOVLAN
AL_ETH AL_ETH
NOVLAN
PC2
PC2PC1
PC3PC4
NOVLAN
NOVLAN
1
2
1
2
VLAN 4001
VLAN 4002
AL_ETH AL_ETH
PC4
VLAN 4003 VLAN 4003
AL_ETH AL_ETH
PC2PC1
VLAN 4005
VLAN 4005
PC1
NOVLAN
PC3NO
VLAN
1
2VLAN 4004
VLAN 4004
PC2
NOVLAN
VLAN 4005
An all pass Hub/Switch. Example1
PC1 with PC2 and PC3 with PC4. Example2
PC1 with PC2 and PC3 with PC4 with one external switch.
Example3
PC1 with PC2 with 2 external switches. Example4
PC3
PC5 PC6
PC4
LocalRemote
ALCplus2 72
TAG composition
1 VLAN TAG
ALCplus2 73
IEEE 802.1Q VLANsVLANs in two different ways:
- Based on Port, VLAN related to a local port attribute
- Based on IEEE 802.1Q TAG , VLAN is defined by the VID
(VLan Identifier) TAG content.
Switching between ports is based on VLAN membership defined
into Vlan configuration table.
Lan1 and Port1 are members of Vlan 303
ALCplus2 74
IEEE 802.1Q VLANs
• Break a LAN into a few smaller LANs and prevent data to flow between the sub-LANs
• Micro segment the LAN with scalability• Distribute traffic load • Better control of broadcast messages• VLAN: a field starting with other 4 Bytes starting
with the 2 Bytes 8100 – the packet size from 1518 Bytes arrives to 1522!
• VLAN with double TAG: a new field with other 4 Bytes starting with the 2 Bytes 9100 (see Ethernet Switch) – Remember to increase packet size!
ALCplus2 75
VLAN
Disable 802.1q: no Tag filter, “Port Based VLAN” will be followed
Fallback: if input is tagged, Virtual LAN table will be followed; if input tag is not present in the map or input is untagged, Port Based VLAN will be followed
Secure: if input is tagged, Virtual LAN table will be followed; if input tag is not present in the map or input is untagged, packets will be dropped
VLAN can be used to route packets through local and remote switch.
If VLAN are not used, “Port Based VLAN” assignment is used port by port
( Port Based VLAN is the old LAN per port )
4001
ALCplus2 76
VLAN mapPort 1 Port 2 Port 3 RadioPort
VLAN 720 doesn’t transit through port 1
VLAN 720 exits through port 1 untagged
VLAN 720 exits through port 1 with tag 720
VLAN 720 exits through port 1, with the same tag it has at input (unmodified)
ALCplus2 77
LAN settings: Interface
Cable
Port status
LAN SpeedFlow control
LLF status
LAN status
Port always active
ALCplus2 78
Settings for allpass Hub all ports to all ports, Example 1
ALCplus2 79
Settings for Lan to Lan separated traffic, Example 2
LAN per port
ALCplus2 80
Lan to Lan separated trafficExample 2 settings
ALCplus2 81
Priority
802.1p
IpTOS
Priority queues are set for all the ports
Priority management can be defined port by port:
in this example, despite general rules, LAN1 does not consider priority!
3 bits8 levels
6 bits64 levels
ALCplus2 82
Quality of Service
Better service to selected network traffic Different service classes based on the identity of the customer
or the type of application Different service levels or to ensure service quality for time-
critical traffic such as voice or video. IEEE 802.1p QoS (Layer 2- Quality of Service): 3 bit of the
TAG. IP-V4 ToS (Layer 3- Type of Service): 6 bit of the TOS
(D.S.C.P.) QoS at level 2, at level 3 or at both
ALCplus2 83
Example of DSCP assignement in a UMTS station
NODE B RAB/RB
DSCP value
Queue Service class 802.1p
TBD 7
TBD 6
Synch 46 3 CBR 5
CS conversational 38 3 CBR 5
SRB 36 3 CBR 5
Common channels 34 3 CBR 5
NBAP Signalling 30 2 VBR real time 4
CS streaming 28 2 VBR real time 4
PS streaming 26 2 VBR real time 4
HS streaming 24 2 VBR real time 4
PS interactive 22 1 VBR not real time 3
PS background 20 1 VBR not real time 3
O&M 12 0 UBR 0
HSPA interactive (1,2) 12 0 UBR 0
HSPA interactive (3) 12 0 UBR 0
ALCplus2 84
LLF
Seconds before the LLF alarm
Port by port, ports to check relevant LLF can be set
ALCplus2 85
LAN PORTEthernet synch.
LAN cable
From 64Kb to Full Rate Auto Negotiation
In point to point connection
ALCplus2 86
Spanning tree
The Spanning Tree Protocol (STP) is a link layer protocol that ensures a loop-free topology for any bridged LAN.
MAC address & priority
Standard STP or rapid RSTP
STP params
edge/no edgeEach port must be assigned to
Bridge1 or Bridge2, every equipment crossed by a packet increases of 1 sec the max age
of the packet
ALCplus2 87
STP parameters• Hello time: from 2 to 10 sec, is the period between two BPDU
packets
• Forward Delay: the time for a status change (blocking learning, learningforwarding, forwardingblocking). In this way the time requested from blocking to forwarding is twice the Forward Delay (2 status changes)
• Max Age: If the incoming packet has a max age bigger than the one here defined, the packet is dropped
ALCplus2 88
RSTP parameters• Hello time: from 1 to 10 sec, is the period between two BPDU
packets
• Forward Delay: the time for a status change (blocking learning,
learningforwarding, forwardingblocking). In RSTP the time
requested from blocking to forwarding between two RSTP ports is the
hallo time (RAPID!) instead if the other port is not RSTP, again the
time is twice the Forward Delay (2 status changes)
• Max Age: If the incoming packet has a max age bigger than the one
here defined, the packet is dropped
ALCplus2 89
Bridge
00 00 00 1C 00 01
Equipment MAC address, set by SIAE, the same for management and traffic
Bridge priority: in case of same value, the smaller MAC addr. elects the router bridge
High Low
Bridge1 and 2 have same MAC addr. but can have different priority
ALCplus2 90
Crossconnection matrix
• Tributary – Radio crossconnetions• Tributary – Tributary crossconnections• Radio – Radio crossconnections
Remember that exist• Permanent E1 (in all ACM
profiles)• Extra E1 (…there are A and B)
ALCplus2 91
CrossConnect Matrix
Radio-Tributary
Tributary (Front panel connectors)
Radio capacity
Extra (Low priority)
Permanent (High priority)
CrossConnection is performed with a Drag ’n’ Drop of the E1 slot
ALCplus2 92
Radio-Radio crossconnection (passthrough)
ALCplus2 93
Trib.-Trib. crossconnection
ALCplus2 94
CrossConnection ListSelection column
Delect the selected crossconnection
ALCplus2 95
ATPC
ALCplus2 96
Link configuration
• 1+0• 1+1 hot stand by• 1+1 freq. diversity• 2+0 (ALplus2 only)
ALCplus2 97
1+1 hot stand-by= FHIGH
= FLOW
= Stand-by= Active
Both radios, working at the same frequency, are active in Rx but only one is active in Tx:
1 antenna – Branching losses are inserted in link budget
2 antennas –Link is in space diversity (and without branching losses) Best performance for d=150l (d=distance between antennas)
ODU ODU
ODU ODU
IDUIDU
1 1
2 2
ALCplus2 98
1+1 frequency diversityODU ODU
ODU ODU
IDUIDU
1 1
2 2
All radios, working at different frequencies, are active in Rx and Tx
1 antenna – Branching losses are inserted in link budget
2 antennas –Link is in space diversity (and without branching losses)
= F1HIGH
= F1LOW
= F2HIGH
= F2LOW
ALCplus2 99
SD management1. Delete SD files2. Create Boot SD3. Create Sw DWL SD4. Enable automatic restore (all)5. Enable automatic restore (Data only)6. Disable automatic restore7. Enable “Not running” Sw delete8. Disable “Not running” Sw delete9. Force automatic restore10. Copy Sw from SD11. Copy Data to BOOT SD12. Copy Sw to BOOT SD_________________________Notes: Sw= Equipment firmwaresData=Configuration Backup file
ALCplus2 100
Configure a new IDU with the SDAfter the substitution of an IDU, the SD memory of the old IDU can download configuration (“data”) and firmware (“SW”) on the new one automatically as soon as its controller points out a mismatch between the serial number (of the old IDU) stored in the SD and the serial number of the new IDU. After there will be a restart.
To prepare the SD memory to be a “back-up”, in the WEBLCT:
1.Insert an empty SD in the IDU and after run WEBLCT
2.Create a Boot SD …it takes about 10 minutes
3.Enable Automatic Restore (All)
Evenctual new setting after this point are included in the back-up
The status of the SD will show:
Automatic data restore from SD..……..Enabled
Automatic SW download from SD……Enabled
ALCplus2 101
Force automatic restore
Force the download from SD to IDU (Only for BootSD).
This command applies the backup manually.
Firmware 1.2.2 and WebLCT 1.2.2• ACL• Configuration mismatch alarm• Line trunk (ethernet traffic)• Radio trunk (ethernet traffic)• ELP• Ethernet OAM-FM• Ethernet Switch reset• Factory default
ALCplus2 102
ACL – Access Control ListA “white list” of IP addresses that can access
the LOCAL IDU
In order to avoid to be cut out from the IDU:
1) Configure the list
2) Enable the list
ALCplus2 103
An empty list, enabled, means: no one can enter!
In any case the access to IDU through LCT port (the USB one) is allowed.
Synchronization: Mismatch and Rescue
ALCplus2 104
Config. Mismatch and
“5 minutes Rescue” are enabled
Configuration Mismatch alarm
Every time one of the equip of the hop has a mismatch due to a new setting…the configuration is not applied until the remote is not configured in the same way.
Parameters checked through this function are:
1.Traffic division (TDM against Ethernet)
2.Extra TDM setting
3.ACM on/off
4.Reference modulation with ACM off
5.Extra TDM priority order
ALCplus2 105
Parameters not checked:Reference modulation with ACM onChannel spacingRF frequencyPeak/Average Tx powerLink ID
Rescue status
During the line-up, if the remote, already configured, is not visible both terminals enter in Rescue status: 4QAM and 0 TDM with Rescue alarm ON.
After 5 minutes if the remote remains unreachable, they turn back to use the traffic configuration of the line up.
ALCplus2 106
Line trunk (802.3 ad-LAG)Up to 4 Ethernet lines can be grouped to increase capacity (4 different groups are available) in the same IDU
Conditions:
1.Same speed
2.Full duplex
Division of Ethernet traffic:
XOR between destination MAC
and source MAC (hashing)
ALCplus2 107
LAN1 LAN2 LAN3 LAN4
Trunk x
Radio trunk (for Ethernet traffic only)
Up to 4 different streams can be grouped to increase capacity (1 group only is available). The IDUs must be in the same node.
Throughput:•Unicast < 1Gbit/s bidirectional
•Broadcast < 0.5Gbit/s bidirectional
ALCplus2 108
Division of Ethernet traffic:XOR between destination MACand source MAC (hashing)
ELPA level 2 protection of ethernet lines (2 or more lines in different groups) in the same IDU or in the same node:
the switch is performed when a LAN port LOS (on local side) is noticed.
When this LOS is over a second switch is not performed.
ELP equipment Prot 1 and 2
ELP nodal Nodal Prot 1, 2, 3 and 4
ALCplus2 109
OAM - FM
ALCplus2 110
…remember to set Fallback or Secure on used port
• FM Fault Management inside user VLAN– Continuity Check Protocol heartbeat with period 1s, 10s, 1m, 10m; no auto reply– Loopback Protocol LBM destination mep/mip replies, up to 5 consecutive– Link Trace Protocol LTM in a MA, reached devices answer with its own MAC address– Remote Defect Indicator a mep informs the other meps of the MA regarding a defect
• MD Maintenance Domain levels from 7 (higher) to 0 (lower)– Customer Domain both ends of Ethernet service: between end users levels 7, 6, 5 – Service Provider Domain whole network except end users levels 4, 3– Operator Domain a part of network levels 2, 1 and 0
• DL Domain Label, different for every domain
• MA Maintenance Association, MA correlates VLAN to MD (and its meps/mips)
• MEP Maintenance End Point– MEP down outside line side– MEP up inside (radio port and other local ports depending on the VLAN table)
• MIP Maintenance Intermediate Point
ALCplus2 111
OAM acronims
ALC+2 1 DM
1 MEP/MIP each VLAN , max 32 VLAN (Vid 1 and Vid 4095 are not available)
1 MA each VLAN (except Vid 1 and Vid 4095)
MEP and MIP1. Create VLAN (VLAN 1 and VLAN 4095 are available for traffic but not for OAM)
2. Set as filter on the VLAN ports Fallback or Secure
3. Create Domain (command OAM-FM Domain in WebLCT)
4. Bind MA (…MIP) or Bind MEP (command OAM-FM MA/MEP in WebLCT)
ALCplus2 112
Bind MAIn OAM-FM MA/MEP select the VLAN
where to create the MIP and select the command Bind MA. The name of the VLAN is suggested MA name.
A MIP is created inside the Ethernet switch.
ALCplus2 113
VLAN 2 is selected
Now VLAN 2 has a MA and a MIP inside the ALC+2
Bind MEP
ALCplus2 114
VLAN 11 is selected
• MEP ID is univocal in the VLAN• MA Name is the VLAN label• CCM Interval is the CCM period :1s, 10s, 1m, 10m
and LAN4 is the port where CCM messages exit through
Select port and direction
Outside the switch
Inside the switch
Now VLAN 11 has a MEP inside the ALC+2, the CCM start from this MEP and go out through LAN4 every 10 seconds
Used port must be NOT “trunked”
MEP usage
ALCplus2 115
CCM enabled. The MEP sents CCMs, every T, to its RMEPs to evalutate the status of the VLAN circuit. The CCM can be originated only by a MEP.T = 1s, 10s, 1m, 10m
MEP identity
RED: no CCM received from remote MEPs for more than 2.5T , or RMEP not present/crosschecked. Green: received from crosschecked RMEP
RMEP: table of Remote MEPs (RMEP) of this local MEP. A RMEP must be crosschecked to be used.Local MEP and its RMEP are in the same VLAN and must have the same CCM period T.A RMEP sends CCMs towards the local MEP and without LBM or LTM does not replies to local MEP.
MAC of remote equip.
MEP status:Start - RMEP must be crosscheckedConnected – RMEP is workingFailed – RMEP is not receiving
Test using MEP: LBM and LTM
ALCplus2 116
Set the MIP
select the RMEP
Number of messagesReplies
LBM – A unicast message towards a same domain MEP/MIP . In case of MIP destination the MAC of the equipment should be written (not in ALC+2)
LTMLTM – All the MEP/MIP met reply towards the sender… that
obtains a list of MIP/MEP crossed towards the RMEP destination.
ALCplus2 117
List
Destination
Sender
Ethernet switch reset
All the ethernet setting are deleted (ethernet traffic is cut). The system restarts.
ALCplus2 118
Factory default
ALCplus2 119
User: System Pswd: “****”
If “Apply” is selected all the settings are deleted substituted by factory default (addresses depends on ODU H or L)
ALCplus2 120
ODU POLE MOUNTING
ALCplus2 121
1+0 Integrated AntennaSTANDARD POLE MOUNTING KIT
ALCplus2 122
1+1 Integrated AntennaSTANDARD POLE MOUNTING KIT
ALCplus2 123
1+0 Not Integrated AntennaSTANDARD POLE MOUNTING KIT
ALCplus2 124
1+1 Not Integrated AntennaSTANDARD POLE MOUNTING KIT
ALCplus2 125
1+0 Integrated AntennaFAST-LOCK POLE MOUNTING KIT
ALCplus2 126
1+1 Integrated AntennaFAST-LOCK POLE MOUNTING KIT
ALCplus2 127
1+0 Not Integrated AntennaFAST-LOCK POLE MOUNTING KIT
ALCplus2 128
1+1 Not Integrated AntennaFAST-LOCK POLE MOUNTING KIT
IDU-ODU cable
Gain in Vdc (dBm in Rx)
Ground