Cisco 2911 Configuration Guide

36
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Configuring Ethernet CFM and Y.1731 Performance Monitoring on Layer 3 Interfaces
Ethernet Data Plane Loopback
This is an intrusive loopback and the packets matched with the service will not be able to
pass through. Continue? (yes/[no]):
Enter yes to continue.
This example shows how to stop an Ethernet data plane loopback:
Router#ethernet loopback stop local interface gigabitethernet 0/2.1101 id 1
Router#*Oct 21 10:16:17.887: %E_DLB-6-DATAPLANE_LOOPBACK_STOP: Ethernet Dataplane Loopback
Stop on interface GigabitEthernet0/2 with session id 1
Router#show ethernet loopback active
Total Active Session(s): 0
Total Internal Session(s): 0
Total External Session(s): 0
Verifying the Ethernet Data Plane Loopback Configuration
Use the following commands to verify the Ethernet data plane loopback configuration:
• show ethernet loopback permitted
• show ethernet loopback active
Use the show ethernet loopback permitted command to view the loopback capabilities per interface:
Router#show ethernet loopback permitted
--------------------------------------------------------------------------------
Interface SrvcInst Direction
Dot1q/Dot1ad(s) Second-Dot1q(s)
--------------------------------------------------------------------------------
Gi0/2.1101 N/A External
100 1101
Use the show ethernet loopback active command to display the summary of the active loopback
sessions on a subinterface:
Router#show ethernet loopback active
Loopback Session ID : 1
Interface : GigabitEthernet0/2.1101
Service Instance : N/A
Direction : External
Time out(sec) : none
Status : on
Start time : *10:17:46.930 UTC Mon Oct 21 2013
Time left : N/A
Dot1q/Dot1ad(s) : 100
Second-dot1q(s) : 1101
Source Mac Address : Any
Destination Mac Address : Any
Ether Type : Any
Class of service : Any
Llc-oui : Any
Total Active Session(s): 1
Total Internal Session(s): 0
Total External Session(s): 1
Use the show ethernet loopback active command to display the summary of the active loopback
sessions on the main interface:
Router#show ethernet loopback permitted
Loopback Session ID : 1
Interface : GigabitEthernet0/2

Cisco 2911 Specifications

General

Ethernet LAN	Yes
Cabling technology	10/100/1000Base-T(X)
Networking standards	IEEE 802.1Q, IEEE 802.1ag, IEEE 802.3, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3ah, IEEE 802.3u
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet interface type	Gigabit Ethernet
DHCP client	-
Routing protocols	BGP, EIGRP, OSPF
Supported protocols	IPv4, IPv6, IS-IS, IGMPv3, PIM SM, SSM, DVMRP, IPSec, GRE, BVD, MPLS, L2TPv3, PPP, MLPPP, MLFR, HDLC, RS-232, RS-449, X.21, V.35, EIA-530, PPPoE, ATM
USB version	2.0
RS-232 ports	1
Expansion slots	4 x EHWIC 2 x DSP 1 x ISM
USB ports quantity	2
Ethernet LAN (RJ-45) ports	3
Firewall security	Cisco IOS
Input current	2.2 A
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	47 - 63 Hz
Power consumption (typical)	50 W
Product color	Black
Rack capacity	2U
Operating altitude	0 - 4000 m
Non-operating altitude	0 - 4570 m
Storage temperature (T-T)	-40 - 80 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	5 - 85 %
Safety	UL 60950-1, CAN/CSA C22.2 No. 60950-1, EN 60950-1, AS/NZS 60950-1, IEC 60950-1
Electromagnetic compatibility	47 CFR, ICES-003, EN55022, CISPR22, AS/NZS 3548, VCCI V-3, EN 300-386, EN 61000, EN 55024, CISPR 24EN50082-1

Weight and Dimensions

Depth	304.8 mm
Width	438.2 mm
Height	88.9 mm
Weight	8200 g