Use the show controllers serial privileged EXEC command to display information that is specific to the interface hardware.
show controllers serial [slot/port]
show controllers serial [slot/port-adapter/port] (Cisco 7500 series and Cisco 7000 series routers with the RSP7000 and RSP7000CI)
Syntax Description
slot
(Optional) Slot number of the interface.
port
(Optional) Port number on the interface. The port value is always 0.
port-adapter
(Optional) On Cisco 7500 series routers and Cisco 7000 series routers with the RSP7000 and RSP7000CI, the location of the port adapter on a VIP. The value can be 0 or 1.
Command Mode
Privileged EXEC
Usage Guidelines
This command first appeared in Cisco IOS Release 10.0.
This command was modified in Cisco IOS Release 11.1 CA to include sample output for the PA-E3 and PA-T3 port adapters.
The information displayed is generally useful for diagnostic tasks performed by technical support personnel only. For the PA-E3 or PA-T3, the show controllers serial command also displays configuration information such as the framing, clock source, bandwidth limit, whether scrambling is enabled, the national bit, the international bits, and DSU mode configured on the interface. Also displayed is the performance statistics for the current interval and last 15-minute interval and whether any alarms exist.
Sample Display
Sample output of the show controllers serial command on the Cisco 4000 follows:
Router#show controllers serialMK5 unit 0, NIM slot 1, NIM type code 7, NIM version 1 idb = 0x6150, driver structure at 0x34A878, regaddr = 0x8100300 IB at 0x6045500: mode=0x0108, local_addr=0, remote_addr=0 N1=1524, N2=1, scaler=100, T1=1000, T3=2000, TP=1 buffer size 1524 DTE V.35 serial cable attached RX ring with 32 entries at 0x45560 : RLEN=5, Rxhead 0 00 pak=0x6044D78 ds=0x6044ED4 status=80 max_size=1524 pak_size=0 01 pak=0x60445F0 ds=0x604474C status=80 max_size=1524 pak_size=0 02 pak=0x6043E68 ds=0x6043FC4 status=80 max_size=1524 pak_size=0 03 pak=0x60436E0 ds=0x604383C status=80 max_size=1524 pak_size=0 04 pak=0x6042F58 ds=0x60430B4 status=80 max_size=1524 pak_size=0 05 pak=0x60427D0 ds=0x604292C status=80 max_size=1524 pak_size=0 06 pak=0x6042048 ds=0x60421A4 status=80 max_size=1524 pak_size=0 07 pak=0x60418C0 ds=0x6041A1C status=80 max_size=1524 pak_size=0 08 pak=0x6041138 ds=0x6041294 status=80 max_size=1524 pak_size=0 09 pak=0x60409B0 ds=0x6040B0C status=80 max_size=1524 pak_size=0 10 pak=0x6040228 ds=0x6040384 status=80 max_size=1524 pak_size=0 11 pak=0x603FAA0 ds=0x603FBFC status=80 max_size=1524 pak_size=0 12 pak=0x603F318 ds=0x603F474 status=80 max_size=1524 pak_size=0 13 pak=0x603EB90 ds=0x603ECEC status=80 max_size=1524 pak_size=0 14 pak=0x603E408 ds=0x603E564 status=80 max_size=1524 pak_size=0 15 pak=0x603DC80 ds=0x603DDDC status=80 max_size=1524 pak_size=0 16 pak=0x603D4F8 ds=0x603D654 status=80 max_size=1524 pak_size=0 17 pak=0x603CD70 ds=0x603CECC status=80 max_size=1524 pak_size=0 18 pak=0x603C5E8 ds=0x603C744 status=80 max_size=1524 pak_size=0 19 pak=0x603BE60 ds=0x603BFBC status=80 max_size=1524 pak_size=0 20 pak=0x603B6D8 ds=0x603B834 status=80 max_size=1524 pak_size=0 21 pak=0x603AF50 ds=0x603B0AC status=80 max_size=1524 pak_size=0 22 pak=0x603A7C8 ds=0x603A924 status=80 max_size=1524 pak_size=0 23 pak=0x603A040 ds=0x603A19C status=80 max_size=1524 pak_size=0 24 pak=0x60398B8 ds=0x6039A14 status=80 max_size=1524 pak_size=0 25 pak=0x6039130 ds=0x603928C status=80 max_size=1524 pak_size=0 26 pak=0x60389A8 ds=0x6038B04 status=80 max_size=1524 pak_size=0 27 pak=0x6038220 ds=0x603837C status=80 max_size=1524 pak_size=0 28 pak=0x6037A98 ds=0x6037BF4 status=80 max_size=1524 pak_size=0 29 pak=0x6037310 ds=0x603746C status=80 max_size=1524 pak_size=0 30 pak=0x6036B88 ds=0x6036CE4 status=80 max_size=1524 pak_size=0 31 pak=0x6036400 ds=0x603655C status=80 max_size=1524 pak_size=0 TX ring with 8 entries at 0x45790 : TLEN=3, TWD=7 tx_count = 0, tx_head = 7, tx_tail = 7 00 pak=0x000000 ds=0x600D70C status=0x38 max_size=1524 pak_size=22 01 pak=0x000000 ds=0x600D70E status=0x38 max_size=1524 pak_size=2 02 pak=0x000000 ds=0x600D70E status=0x38 max_size=1524 pak_size=2 03 pak=0x000000 ds=0x600D70E status=0x38 max_size=1524 pak_size=2 04 pak=0x000000 ds=0x600D70E status=0x38 max_size=1524 pak_size=2 05 pak=0x000000 ds=0x600D70E status=0x38 max_size=1524 pak_size=2 06 pak=0x000000 ds=0x600D70E status=0x38 max_size=1524 pak_size=2 07 pak=0x000000 ds=0x6000000 status=0x38 max_size=1524 pak_size=0 XID/Test TX desc at 0xFFFFFF, status=0x30, max_buffer_size=0, packet_size=0 XID/Test RX desc at 0xFFFFFF, status=0x0, max_buffer_size=0, packet_size=0 Status Buffer at 0x60459C8: rcv=0, tcv=0, local_state=0, remote_state=0 phase=0, tac=0, currd=0x00000, curxd=0x00000 bad_frames=0, frmrs=0, T1_timeouts=0, rej_rxs=0, runts=0 0 missed datagrams, 0 overruns, 0 bad frame addresses 0 bad datagram encapsulations, 0 user primitive errors 0 provider primitives lost, 0 unexpected provider primitives 0 spurious primitive interrupts, 0 memory errors, 0 tr %LINEPROTO-5-UPDOWN: Linansmitter underruns mk5025 registers: csr0 = 0x0E00, csr1 = 0x0302, csr2 = 0x0704 csr3 = 0x5500, csr4 = 0x0214, csr5 = 0x0008The following is sample output from the show controllers serial command for a PA-E3 serial port installed in slot 2:
router#show controllers serial 2/0M1T-E3 pa: show controller: PAS unit 0, subunit 0, f/w version 2-55, rev ID 0x2800001, version 2 idb = 0x6080D54C, ds = 0x6080F304, ssb=0x6080F4F4 Clock mux=0x30, ucmd_ctrl=0x0, port_status=0x1 Serial config=0x8, line config=0x1B0202 maxdgram=4474, bufpool=128Kb, 256 particles rxLOS inactive, rxLOF inactive, rxAIS inactive txAIS inactive, rxRAI inactive, txRAI inactive line state: up E3 DTE cable, received clockrate 50071882 base0 registers=0x3D000000, base1 registers=0x3D002000 mxt_ds=0x608BA654, rx ring entries=128, tx ring entries=256 rxring=0x4B01F480, rxr shadow=0x6081081C, rx_head=26 txring=0x4B01F960, txr shadow=0x60810E48, tx_head=192, tx_tail=192, tx_count=0 throttled=0, enabled=0, disabled=0 rx_no_eop_err=0, rx_no_stp_err=0, rx_no_eop_stp_err=0 rx_no_buf=0, rx_soft_overrun_err=0, dump_err= 1 tx_underrun_err=0, tx_soft_underrun_err=0, tx_limited=0 tx_fullring=0, tx_started=11504 Framing is g751, Clock Source is Line, Bandwidth limit is 34010. Scrambling is enabled National Bit is 0, Internaltional Bits are: 0 0 DSU mode 1 Data in current interval (213 seconds elapsed): 0 Line Code Violations, 0 P-bit Coding Violation 0 C-bit Coding Violation 0 P-bit Err Secs, 0 P-bit Severely Err Secs 0 Severely Err Framing Secs, 0 Unavailable Secs 0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Severely Errored Secs Total Data (last 24 hours) 0 Line Code Violations, 0 P-bit Coding Violation, 0 C-bit Coding Violation, 0 P-bit Err Secs, 0 P-bit Severely Err Secs, 0 Severely Err Framing Secs, 0 Unavailable Secs, 0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Severely Errored Secs No alarms detected. PIO A: 639, PIO B: 303, Gapper register: 50DE Framer register information: reg 0: E0 reg 1: 0 reg 2: 0 reg 3: 0 reg 4: 0 reg 5: 8 reg 6: 0 reg 7: 0The following is sample output from the show controllers serial command that shows serial port 1/0/0 on a 1-port PA-T3 serial port adapter installed on a VIP2 in chassis slot 1:
router#show controllers serial 2/0/1Serial1/0/0 - Mx T3(1) HW Revision 0x3, FW Revision 2.55 Framing is c-bit, Clock Source is Line Bandwidth limit is 35000, DSU mode 1, Cable length is 50 Data in current interval (325 seconds elapsed): 0 Line Code Violations, 0 P-bit Coding Violation 0 C-bit Coding Violation 0 P-bit Err Secs, 0 P-bit Sev Err Secs 0 Sev Err Framing Secs, 0 Unavailable Secs 0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Sev Err Secs Total Data (last 24 hours) 0 Line Code Violations, 0 P-bit Coding Violation, 0 C-bit Coding Violation, 0 P-bit Err Secs, 0 P-bit Sev Err Secs, 0 Sev Err Framing Secs, 0 Unavailable Secs, 0 Line Errored Secs, 0 C-bit Errored Secs, 0 C-bit Sev Err Secs No alarms detected.