Abhishek Sagar

Software Engineer

Bengaluru, Karnataka, India13 yrs 8 mos experience

Highly Stable

Key Highlights

Expert in L2/L3 Multicast and Unicast Routing Protocols
Proficient in Firewall Technologies and Network Security
Strong background in Segment Routing and Traffic Engineering

Stackforce AI infers this person is a Networking and Security Specialist with expertise in Multicast and Routing Protocols.

Contact

sachinites@gmail.com LinkedIn

Skills

Core Skills

Multicast RoutingSegment RoutingFirewall TechnologiesNetwork SecurityRouting ProtocolsTraffic Engineering

Other Skills

L2/L3 MulticastPIM-SparseIGMPSRv6SD-WANVxLAN EVPNBGP ConfederationCisco ASACisco FTDPolicy-Based RoutingIPv6 DHCP Proxy ClientAzure Cloud PlatformISIS ProtocolFast RerouteMPLS Tunneling

About

Multicast [Brocade Communications] L2 and L3 Multicast Routing Protocols, Ipv4 IGMP Snooping V2/V3, Ipv6 Multicast Listener Discover (MLD) v1/v2, Protocol Independant Multicast ( PIM ) Unicast [Juniper Networks] IGP unicast routing Protocols - ISIS, Segment-Routing, Fast-Reroute, Segment-Routing Traffic Engineering ( SRTE), Tunneling, High-Availability, V4oV6 MPLS Tunneling, Label Switching, Node Sids, Adjacency Sids, SPF, Constraint-SPF, Distributed SPF Fast Reroute - Loop-Free Alternates (LFA), Remote LFA, Topology Independent LFA, Per-Prefix LFA (PPLFA) BGP-EVPN VxLAN, L3VPN, FRR ( Free Range Routing ) Firewall Technologies [Cisco Systems] Cisco ASA/FTD Forewall products, Policy-Based-Routing, Access-Control-List, Prefix List, Object-Groups, NAT, DHCP, BFD Integration with IGPs, Software Based Data-Path, Connection Management Advanced L3 Routing [Calix] L2/L3 Multicast , IGPs, SR-MPLS, SRv6, SD-WAN

Experience

13 yrs 8 mos

Total Experience

3 yrs 6 mos

Average Tenure

3 yrs

Current Experience

Calix

Staff Software Engineer

May 2023 – Present · 3 yrs · Bengaluru, Karnataka, India · Hybrid

Working in L2/L3 Multicast - PIM-Sparse, IGMP. Contributed towards Implementation of PIM features - LHR-SPT Switchover & FHR-Registration with RP.
SRv6 - Segment Routing for IPV6, SD-WAN, VxLAN EVPN, BGP Confederation ( MetaSwitch Stack )

L2/L3 MulticastPIM-SparseIGMPSRv6SD-WANVxLAN EVPN+3

Cisco

Senior Software Engineer

Mar 2021 – Apr 2023 · 2 yrs 1 mo · Bangalore Urban, Karnataka, India · Hybrid

Security BU - Working on Cisco Next-Generation Firewalls - Cisco Adaptive Security Appliance (ASA) and Cisco Firepower Threat Detection (FTD)
Policy-Based Routing (PBR) - Adoptive routing based on least RTT, Jitter, Or Packet-Loss.
V6 Feature Verifications of Cisco Firewall (ASA/FTD) on Azure Cloud Platform.
Implementation of IPV6 DHCP Proxy Client to request resources from DHCP Server on behalf of Cisco AnyConnect Client ( Remote VPN User )

Cisco ASACisco FTDPolicy-Based RoutingIPv6 DHCP Proxy ClientAzure Cloud PlatformFirewall Technologies+1

Juniper networks

Software Engineer 3

Apr 2017 – Mar 2021 · 3 yrs 11 mos · Bengaluru Area, India

ISIS protocol Feature development & maintenance
Stub-Networks Overloading
On-Change Notifications
Fast Reroute Implementation and Maintenance ( Loop-Free Alternates/Remote Loop-Free Alternates )
Unnumbered Interface Support for ISIS
( Allow ISIS to not rely on interface IPv4 Addresses for Adjacency formation for Point-to-Point Links. )
Weighted ECMP support in ISIS protocol
Forwarding Adjacencies ( Advertise MPLS Tunnels as Forwarding Adjacencies in ISIS )
Segment Routing ( SR ) - Was involved in the development and integration of SR features with ISIS Protocol.
SR Features - Prefix Sids, Node Sids & Adjacency Sids
Advertisement of SR Prefix Sids via Mapping Server
NSR (Non-Stop Routing/HA ) for ISIS/SR
Tunneling Support - LDPoSR and SRoLDP
SRv6
SRTE ( Segment Routing Traffic Engineering )
Static SRTE, Distributed CSPF, ODN, Path-Computation Element ( PCE )
TILFA ( Topology Independent LFA )
6PE ( V4oV6 Tunneling )
NSR ( Non Stop Routing/HA ) for SRTE