Dsxpnm Serial Interface
Finding the RX clock on a Serial interface WAN. Is there any way of doing a show command that will show what clock rate a Serial interface is running. How can I check the traffic on a serial interface to be sure that it is not overloaded? I having an issue with an application not working over our WAN connecti. Show interface ser0/0 (or whatever the interface number is). Look for the following lines. Hardware is DSXPNM Serial Description: DS3 to Wilmington Internet address is 192.168. Sealevel asynchronous serial interfaces are designed for high-speed applications and support RS-232, RS-422, RS-485, and RS-530 electrical interface standards. Whether you choose a traditional bus-based approach or opt for easy-to-use USB or Ethernet solutions, you will be quickly communicating with your serial devices.
Figure 1. Cisco T3/E3 Network Module
Key Benefits
• Physical space savings: Eliminates the need for external DSU device, saving valuable rack space
• Simplified management: Eliminates the need for two separate monitoring tools
• Software-configurable T3/E3: Provides the flexibility to deploy a single module worldwide
Key Features Euro style regular font.
• One-port T3 with DSU or E3 with DSU network module
• T3/E3-specific features for monitoring, bit error rate tester (BERT), Management Information Bases (MIBs), alarms, and more
• Ability to independently or simultaneously enable scrambling and subrate in each DSU mode; support for the following DSU vendors' algorithms: Digital Link, Kentrox, Larscom, Verilink, Adtran.
• Support for the serial encapsulation protocols: Frame Relay, Point-to-Point Protocol (PPP), High-Level Data Link Control (HDLC)
• 16-bit cyclic redundancy check (CRC)
Key Management Features
• Line and payload loopback capabilities
• DS3 remote-line loopback (via Far End Alarm and Control [FEAC] codes per American National Standards Institute [ANSI] T1.107a)
• Response to embedded loopback commands
• Insertion of loopback commands into transmitted signal
• Programmable pseudorandom pattern up to 32 bits long, including 223, 220, 215, 1s, 0s, alt-0-1
• 32-bit error count and bit-count registers
• Alarm detection-Alarm indication signal (AIS), remote alarm, far-end block error (FEBE), out of frame (OOF)
• Onboard processor for Maintenance Data Link (MDL)
T3/E3 Applications and Positioning
Table 1. Cisco T3/E3 Network Module Branch Office Positioning and Platform Support Matrix
Supported Platform | Recommended Type of Service | Maximum T3/E3 Supported | Minimum Cisco IOS Software Version (IP Base Feature Set or Above) |
Cisco 2650 and 2651XM | Subrate T3/E3 | 1 | 12.2(15)T |
Cisco 2691 | Subrate T3/E3 | 1 | 12.2(15)T |
Cisco 2800 | Subrate T3/E3 with concurrent services | 1 | 12.3(8)T |
Cisco 2951 | Full rate T3/E3 with concurrent services | 1 | 15.0(1)M |
Cisco 3661 and 3662 | Sub and full-rate T3/E3 with limited services | 1 | 12.2(15)T |
Cisco 3725/3745 | Full-rate T3/E3 with no services | 1 | 12.2(15)T |
Cisco 3825 | Full rate T3/E3 with no services | 1 | 12.3(8)T |
Cisco 3845 | Full-rate T3/E3 with concurrent services | 2 | 12.3(8)T |
Cisco 3925/3925E* | Full-rate T3/E3 with concurrent services | 1 | 15.0(1)M |
Cisco 3945/3945E* | Full-rate T3/E3 with concurrent services | 2 | 15.0(1)M |
Note: Support for the NM-1T3/E3 network module in the 3925, 3925E and 3945, and 3945E will be via the network module adapter card (SM-NM-ADPTR).
Figure 2. Typical Cisco T3/E3 Network Module Deployments
Specifications
Table 2. Product Name and Description
Product Number | Description |
NM-1T3/E3 | One-port clear-channel T3/E3 network module |
Hardware Specifications
DS3/E3 Specifications
• DSX3 level interface with dual female 75-ohm BNC coaxial connectors per port (separate RX and TX)
• Full-duplex connectivity at DS3 rate (44.736 MHz)
• Full-duplex connectivity at E3 rate (34.368 MHz)
• Scrambling and subrate support of major DSU vendors
• Line build-out-Programmable for up to 450 feet of 734A or equivalent coaxial cable or up to 225 feet for 728A or equivalent coaxial cable
• C-bit, or M23 framing for T3, bypass and G.751 framing for E3 (software selectable)
• Binary 3-zero substitution (B3ZS) (T3) or high-density bipolar with three zeros (HDB3) (E3) line coding
• Support for 16- and 32-bit CRC (16-bit default)
• DS3 FEAC channel support
• Twenty-four-hour history maintained for error statistics and failure counts
• DS3 alarm and event detection (once per second polling)
• Alarm indication signal (AIS)
• Out of frame (OOF)
• Line code violation (LCV)
• Excessive zeros (EXZ)
• Far-end receive failure (FERF)
Table 3. LED Port Indicators and Status
LED Indicator | Color | Active State Description |
CD | Green | Loopback mode on |
LP | Yellow | Port is receiving AIS |
AIS | Yellow | Port is receiving FERF signal |
FERF | Yellow | Network module is enabled |
EN | Yellow | Port is receiving OOF errors |
Alarm | Yellow | Loopback mode on |
Serial Encapsulations
• HDLC
• PPP
• Frame Relay
Physical Specifications
• Single-wide network module, no slot restrictions
• Dimensions (H x W x D) 1.55 x 7.10 x 7.2 inches (3.9 x 18.0 x 18.3 centimeters)
Environmental Specifications
• Operating temperature: 32 to 104°F (0 to 40°C)
• Storage temperature: -4 to 149°F (-20 to 65°C)
• Relative humidity: 10 to 90%, non condensing
Certification Compliance
DS3 Physical Layer
• ANSI T1.102, T1.107
E3 Physical Layer
• TBR24
• ITU-T G.703 & G.823
• ACA TS016
Safety
• United States (UL1950 3rd Edition/CSA C22.2, No.950)
• Canada (C1950)
• UK (BS6301, EN60950, EN41003)
• Germany (TUV GS)
• France (EN60950, EN41003, NFC98020)
• AS/NZS 3260 (Australia/New Zealand)
• EN60950/EN41003 (Europe)
• IEC 950 (national deviations)
EMC
• 47 CFR 15: 2001 Class A (FCC)
• ICES003 Class A
• EN55022 Class A: 1998
• EN300386: 2001
• EN55024:1998, EN50082-1:1997 and EN61000-6-2: 1999 including:
– ESD: EN61000-4-2
– Radiated Immunity: EN61000-4-3
– Burst Transients: EN61000-4-4
– Surges: EN61000-4-5
– Injected RF: EN61000-4-6
– Dips + Sags: EN61000-4-11
• EN61000-3-2: 1995
• EN61000-3-3: 1995
• AS/NZS 3548 Class A
• VCCI V-3/2000.04 Class A
Standards
• T3/E3 MIB (RFC 1407)
Cisco and Partner Services for the Branch
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ROuter#show conf
Using 1810 out of 155640 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
card type t3 2
no logging console
!
no aaa new-model
memory-size iomem 25
ip cef
!
no ip domain lookup
ip domain name xxxxxxx.com
ip auth-proxy max-nodata-conns 3ip admission max-nodata-conns 3
!
controller T3 2/0
cablelength 30
!
interface Loopback1
no ip address
shutdown
!
interface FastEthernet0/0
description VISIUM LAN
ip address x.x.x.4 255.255.255.0
Free Rs232 Communication Software
no ip proxy-arp
no ip route-cache cef
no ip mroute-cache
load-interval 30
speed 100
full-duplex
no keepalive
no cdp enable
standby timers 3 13
standby track Serial2/0
standby 1 ip x.x.x.1
standby 1 priority 91
standby 1 preempt
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial2/0
ip address y.y.y.162 255.255.255.252
no ip redirects
no ip proxy-arp
encapsulation ppp
ip route-cache flow
no ip mroute-cache
keepalive 8
dsu bandwidth 12632
scramble
!
router bgp 11111111
no synchronization
bgp log-neighbor-changes
network x.x.x.0 mask 255.255.255.0
neighbor y.y.y.161 remote-as 701
neighbor y.y.y.161 prefix-list ABC in
no auto-summary
!
no ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Serial2/0
!
ip flow-top-talkers
top 10
sort-by bytes
!
ip http server
no ip http secure-server
!
!
ip prefix-list ABC seq 5 permit 0.0.0.0/0
!
control-plane
!
!
line con 0
line aux 0
exec-timeout 60 0
modem InOut
transport input all
transport output all
stopbits 1
flowcontrol hardware
line vty 0 4
password
login
!
!
end
--------------------------------------------------------------------
ROUTER#show int fa 0/0
FastEthernet0/0 is up, line protocol is up
Hardware is Gt96k FE, address is 000d.ede3.5bf0 (bia 000d.ede3.5bf0)
Description: LAN
Internet address is x.x.x.4/24
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 100Mb/s, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:01, output 00:00:00, output hang never
Last clearing of 'show interface' counters 01:01:08
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 273000 bits/sec, 134 packets/sec
30 second output rate 302000 bits/sec, 134 packets/sec
560077 packets input, 134967077 bytes
Received 2675 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
693861 packets output, 524593256 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
185 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
-------------------------------------------------------------------
Router#show int ser 2/0
Serial2/0 is up, line protocol is up
Hardware is DSXPNM Serial
Internet address is y.y.y.162/30
MTU 4470 bytes, BW 12631 Kbit, DLY 200 usec,
reliability 255/255, txload 6/255, rxload 39/255
Encapsulation PPP, LCP Open
Listen: CDPCP
Open: IPCP, crc 16, loopback not set
Keepalive set (8 sec)
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of 'show interface' counters 01:01:13
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 1937000 bits/sec, 258 packets/sec
5 minute output rate 323000 bits/sec, 187 packets/sec
696323 packets input, 518328283 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
187 input errors, 187 CRC, 1 frame, 0 overrun, 0 ignored, 3 abort
560570 packets output, 129577987 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DSU mode 0, bandwidth 12632, real bandwidth 12631, scramble 1